ogrfielddefn.cpp

/******************************************************************************
 *
 * Project:  OpenGIS Simple Features Reference Implementation
 * Purpose:  The OGRFieldDefn class implementation.
 * Author:   Frank Warmerdam, warmerda@home.com
 *
 ******************************************************************************
 * Copyright (c) 1999,  Les Technologies SoftMap Inc.
 * Copyright (c) 2009-2013, Even Rouault <even dot rouault at spatialys.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 ****************************************************************************/

#include "cpl_port.h"
#include "ogr_feature.h"

#include <cstring>

#include "ogr_api.h"
#include "ogr_core.h"
#include "ogr_p.h"
#include "ograpispy.h"
#include "cpl_conv.h"
#include "cpl_error.h"
#include "cpl_string.h"

/************************************************************************/
/*                            OGRFieldDefn()                            */
/************************************************************************/

/**
 * \brief Constructor.
 *
 * By default, fields have no width, precision, are nullable and not ignored.
 *
 * @param pszNameIn the name of the new field.
 * @param eTypeIn the type of the new field.
 */

OGRFieldDefn::OGRFieldDefn(const char *pszNameIn, OGRFieldType eTypeIn)
    : pszName(CPLStrdup(pszNameIn)), pszAlternativeName(CPLStrdup("")),
      eType(eTypeIn), eJustify(OJUndefined),
      // Should nWidth & nPrecision be defined in some particular way for
      // numbers?
      nWidth(0), nPrecision(0), pszDefault(nullptr), bIgnore(FALSE),
      eSubType(OFSTNone), bNullable(TRUE), bUnique(FALSE)
{
}

/************************************************************************/
/*                            OGRFieldDefn()                            */
/************************************************************************/

/**
 * \brief Constructor.
 *
 * Create by cloning an existing field definition.
 *
 * @param poPrototype the field definition to clone.
 */

OGRFieldDefn::OGRFieldDefn(const OGRFieldDefn *poPrototype)
    : pszName(CPLStrdup(poPrototype->GetNameRef())),
      pszAlternativeName(CPLStrdup(poPrototype->GetAlternativeNameRef())),
      eType(poPrototype->GetType()), eJustify(poPrototype->GetJustify()),
      nWidth(poPrototype->GetWidth()), nPrecision(poPrototype->GetPrecision()),
      pszDefault(nullptr),
      bIgnore(FALSE),  // TODO(schwehr): Can we use IsIgnored()?
      eSubType(poPrototype->GetSubType()), bNullable(poPrototype->IsNullable()),
      bUnique(poPrototype->IsUnique()),
      m_osDomainName(poPrototype->m_osDomainName),
      m_osComment(poPrototype->GetComment()),
      m_nTZFlag(poPrototype->GetTZFlag())
{
    SetDefault(poPrototype->GetDefault());
}

/************************************************************************/
/*                           OGR_Fld_Create()                           */
/************************************************************************/
/**
 * \brief Create a new field definition.
 *
 * By default, fields have no width, precision, are nullable and not ignored.
 *
 * This function is the same as the CPP method OGRFieldDefn::OGRFieldDefn().
 *
 * @param pszName the name of the new field definition.
 * @param eType the type of the new field definition.
 * @return handle to the new field definition.
 */

OGRFieldDefnH OGR_Fld_Create(const char *pszName, OGRFieldType eType)

{
    return OGRFieldDefn::ToHandle(new OGRFieldDefn(pszName, eType));
}

/************************************************************************/
/*                           ~OGRFieldDefn()                            */
/************************************************************************/

OGRFieldDefn::~OGRFieldDefn()

{
    CPLFree(pszName);
    CPLFree(pszAlternativeName);
    CPLFree(pszDefault);
}

/************************************************************************/
/*                          OGR_Fld_Destroy()                           */
/************************************************************************/
/**
 * \brief Destroy a field definition.
 *
 * @param hDefn handle to the field definition to destroy.
 */

void OGR_Fld_Destroy(OGRFieldDefnH hDefn)

{
    delete OGRFieldDefn::FromHandle(hDefn);
}

/************************************************************************/
/*                              SetName()                               */
/************************************************************************/

/**
 * \brief Reset the name of this field.
 *
 * This method is the same as the C function OGR_Fld_SetName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param pszNameIn the new name to apply.
 */

void OGRFieldDefn::SetName(const char *pszNameIn)

{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetName() not allowed on a sealed object");
        return;
    }
    if (pszName != pszNameIn)
    {
        CPLFree(pszName);
        pszName = CPLStrdup(pszNameIn);
    }
}

/************************************************************************/
/*                          OGR_Fld_SetName()                           */
/************************************************************************/
/**
 * \brief Reset the name of this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to apply the new name to.
 * @param pszName the new name to apply.
 */

void OGR_Fld_SetName(OGRFieldDefnH hDefn, const char *pszName)

{
    OGRFieldDefn::FromHandle(hDefn)->SetName(pszName);
}

/************************************************************************/
/*                             GetNameRef()                             */
/************************************************************************/

/**
 * \fn const char *OGRFieldDefn::GetNameRef();
 *
 * \brief Fetch name of this field.
 *
 * This method is the same as the C function OGR_Fld_GetNameRef().
 *
 * @return pointer to an internal name string that should not be freed or
 * modified.
 */

/************************************************************************/
/*                         OGR_Fld_GetNameRef()                         */
/************************************************************************/
/**
 * \brief Fetch name of this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetNameRef().
 *
 * @param hDefn handle to the field definition.
 * @return the name of the field definition.
 *
 */

const char *OGR_Fld_GetNameRef(OGRFieldDefnH hDefn)

{

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_Fld_GetXXXX(hDefn, "GetNameRef");
#endif

    return OGRFieldDefn::FromHandle(hDefn)->GetNameRef();
}

/************************************************************************/
/*                              SetAlternativeName()                    */
/************************************************************************/

/**
 * \brief Reset the alternative name (or "alias") for this field.
 *
 * The alternative name is an optional attribute for a field which can provide
 * a more user-friendly, descriptive name of a field which is not subject to
 * the usual naming constraints defined by the data provider.
 *
 * This is a metadata style attribute only: the alternative name cannot
 * be used in place of the actual field name during SQL queries or other
 * field name dependent API calls.
 *
 * This method is the same as the C function OGR_Fld_SetAlternativeName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param pszAlternativeNameIn the new alternative name to apply.
 *
 * @since GDAL 3.2
 */

void OGRFieldDefn::SetAlternativeName(const char *pszAlternativeNameIn)

{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetAlternativeName() not allowed on a sealed "
                 "object");
        return;
    }
    if (pszAlternativeName != pszAlternativeNameIn)
    {
        CPLFree(pszAlternativeName);
        pszAlternativeName = CPLStrdup(pszAlternativeNameIn);
    }
}

/************************************************************************/
/*                          OGR_Fld_SetAlternativeName()                */
/************************************************************************/
/**
 * \brief Reset the alternative name (or "alias") for this field.
 *
 * The alternative name is an optional attribute for a field which can provide
 * a more user-friendly, descriptive name of a field which is not subject to
 * the usual naming constraints defined by the data provider.
 *
 * This is a metadata style attribute only: the alternative name cannot
 * be used in place of the actual field name during SQL queries or other
 * field name dependent API calls.
 *
 * This function is the same as the CPP method
 * OGRFieldDefn::SetAlternativeName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to apply the new alternative name
 * to.
 * @param pszAlternativeName the new alternative name to apply.
 *
 * @since GDAL 3.2
 */

void OGR_Fld_SetAlternativeName(OGRFieldDefnH hDefn,
                                const char *pszAlternativeName)

{
    OGRFieldDefn::FromHandle(hDefn)->SetAlternativeName(pszAlternativeName);
}

/************************************************************************/
/*                             GetAlternativeNameRef()                  */
/************************************************************************/

/**
 * \fn const char *OGRFieldDefn::GetAlternativeNameRef();
 *
 * \brief Fetch the alternative name (or "alias") for this field.
 *
 * The alternative name is an optional attribute for a field which can provide
 * a more user-friendly, descriptive name of a field which is not subject to
 * the usual naming constraints defined by the data provider.
 *
 * This is a metadata style attribute only: the alternative name cannot
 * be used in place of the actual field name during SQL queries or other
 * field name dependent API calls.
 *
 * This method is the same as the C function OGR_Fld_GetAlternativeNameRef().
 *
 * @return pointer to an internal alternative name string that should not be
 * freed or modified.
 *
 * @since GDAL 3.2
 */

/************************************************************************/
/*                         OGR_Fld_GetAlternativeNameRef()              */
/************************************************************************/
/**
 * \brief Fetch the alternative name (or "alias") for this field.
 *
 * The alternative name is an optional attribute for a field which can provide
 * a more user-friendly, descriptive name of a field which is not subject to
 * the usual naming constraints defined by the data provider.
 *
 * This is a metadata style attribute only: the alternative name cannot
 * be used in place of the actual field name during SQL queries or other
 * field name dependent API calls.
 *
 * This function is the same as the CPP method
 * OGRFieldDefn::GetAlternativeNameRef().
 *
 * @param hDefn handle to the field definition.
 * @return the alternative name of the field definition.
 *
 * @since GDAL 3.2
 */

const char *OGR_Fld_GetAlternativeNameRef(OGRFieldDefnH hDefn)

{

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_Fld_GetXXXX(hDefn, "GetAlternativeNameRef");
#endif

    return OGRFieldDefn::FromHandle(hDefn)->GetAlternativeNameRef();
}

/************************************************************************/
/*                              GetType()                               */
/************************************************************************/

/**
 * \fn OGRFieldType OGRFieldDefn::GetType() const;
 *
 * \brief Fetch type of this field.
 *
 * This method is the same as the C function OGR_Fld_GetType().
 *
 * @return field type.
 */

/************************************************************************/
/*                          OGR_Fld_GetType()                           */
/************************************************************************/
/**
 * \brief Fetch type of this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetType().
 *
 * @param hDefn handle to the field definition to get type from.
 * @return field type.
 */

OGRFieldType OGR_Fld_GetType(OGRFieldDefnH hDefn)

{

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_Fld_GetXXXX(hDefn, "GetType");
#endif

    return OGRFieldDefn::FromHandle(hDefn)->GetType();
}

/************************************************************************/
/*                              SetType()                               */
/************************************************************************/

/**
 * \brief Set the type of this field.
 * This should never be done to an OGRFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This method is the same as the C function OGR_Fld_SetType().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param eTypeIn the new field type.
 */

void OGRFieldDefn::SetType(OGRFieldType eTypeIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetType() not allowed on a sealed object");
        return;
    }
    if (!OGR_AreTypeSubTypeCompatible(eTypeIn, eSubType))
    {
        CPLError(CE_Warning, CPLE_AppDefined,
                 "Type and subtype of field definition are not compatible. "
                 "Resetting to OFSTNone");
        eSubType = OFSTNone;
    }
    eType = eTypeIn;
}

/************************************************************************/
/*                          OGR_Fld_SetType()                           */
/************************************************************************/
/**
 * \brief Set the type of this field.
 * This should never be done to an OGRFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetType().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set type to.
 * @param eType the new field type.
 */

void OGR_Fld_SetType(OGRFieldDefnH hDefn, OGRFieldType eType)

{
    OGRFieldDefn::FromHandle(hDefn)->SetType(eType);
}

/************************************************************************/
/*                             GetSubType()                             */
/************************************************************************/

/**
 * \fn OGRFieldSubType OGRFieldDefn::GetSubType() const;
 *
 * \brief Fetch subtype of this field.
 *
 * This method is the same as the C function OGR_Fld_GetSubType().
 *
 * @return field subtype.
 * @since GDAL 2.0
 */

/************************************************************************/
/*                         OGR_Fld_GetSubType()                         */
/************************************************************************/
/**
 * \brief Fetch subtype of this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetSubType().
 *
 * @param hDefn handle to the field definition to get subtype from.
 * @return field subtype.
 * @since GDAL 2.0
 */

OGRFieldSubType OGR_Fld_GetSubType(OGRFieldDefnH hDefn)

{

#ifdef OGRAPISPY_ENABLED
    if (bOGRAPISpyEnabled)
        OGRAPISpy_Fld_GetXXXX(hDefn, "GetSubType");
#endif

    return OGRFieldDefn::FromHandle(hDefn)->GetSubType();
}

/************************************************************************/
/*                             SetSubType()                             */
/************************************************************************/

/**
 * \brief Set the subtype of this field.
 * This should never be done to an OGRFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This method is the same as the C function OGR_Fld_SetSubType().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param eSubTypeIn the new field subtype.
 * @since GDAL 2.0
 */
void OGRFieldDefn::SetSubType(OGRFieldSubType eSubTypeIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetSubType() not allowed on a sealed object");
        return;
    }
    if (!OGR_AreTypeSubTypeCompatible(eType, eSubTypeIn))
    {
        CPLError(CE_Warning, CPLE_AppDefined,
                 "Type and subtype of field definition are not compatible. "
                 "Resetting to OFSTNone");
        eSubType = OFSTNone;
    }
    else
    {
        eSubType = eSubTypeIn;
    }
}

/************************************************************************/
/*                         OGR_Fld_SetSubType()                         */
/************************************************************************/
/**
 * \brief Set the subtype of this field.
 * This should never be done to an OGRFieldDefn
 * that is already part of an OGRFeatureDefn.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetSubType().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set type to.
 * @param eSubType the new field subtype.
 * @since GDAL 2.0
 */

void OGR_Fld_SetSubType(OGRFieldDefnH hDefn, OGRFieldSubType eSubType)

{
    OGRFieldDefn::FromHandle(hDefn)->SetSubType(eSubType);
}

/************************************************************************/
/*                             SetDefault()                             */
/************************************************************************/

/**
 * \brief Set default field value.
 *
 * The default field value is taken into account by drivers (generally those
 * with a SQL interface) that support it at field creation time. OGR will
 * generally not automatically set the default field value to null fields by
 * itself when calling OGRFeature::CreateFeature() / OGRFeature::SetFeature(),
 * but will let the low-level layers to do the job. So retrieving the feature
 * from the layer is recommended.
 *
 * The accepted values are NULL, a numeric value, a literal value enclosed
 * between single quote characters (and inner single quote characters escaped by
 * repetition of the single quote character),
 * CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or
 * a driver specific expression (that might be ignored by other drivers).
 * For a datetime literal value, format should be 'YYYY/MM/DD HH:MM:SS[.sss]'
 * (considered as UTC time).
 *
 * Drivers that support writing DEFAULT clauses will advertise the
 * GDAL_DCAP_DEFAULT_FIELDS driver metadata item.
 *
 * This function is the same as the C function OGR_Fld_SetDefault().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param pszDefaultIn new default field value or NULL pointer.
 *
 * @since GDAL 2.0
 */

void OGRFieldDefn::SetDefault(const char *pszDefaultIn)

{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetDefault() not allowed on a sealed object");
        return;
    }
    CPLFree(pszDefault);
    pszDefault = nullptr;

    if (pszDefaultIn && pszDefaultIn[0] == '\'' &&
        pszDefaultIn[strlen(pszDefaultIn) - 1] == '\'')
    {
        const char *pszPtr = pszDefaultIn + 1;  // Used after for.
        for (; *pszPtr != '\0'; pszPtr++)
        {
            if (*pszPtr == '\'')
            {
                if (pszPtr[1] == '\0')
                    break;
                if (pszPtr[1] != '\'')
                {
                    CPLError(CE_Failure, CPLE_AppDefined,
                             "Incorrectly quoted string literal");
                    return;
                }
                pszPtr++;
            }
        }
        if (*pszPtr == '\0')
        {
            CPLError(CE_Failure, CPLE_AppDefined,
                     "Incorrectly quoted string literal");
            return;
        }
    }

    pszDefault = pszDefaultIn ? CPLStrdup(pszDefaultIn) : nullptr;
}

/************************************************************************/
/*                         OGR_Fld_SetDefault()                         */
/************************************************************************/

/**
 * \brief Set default field value.
 *
 * The default field value is taken into account by drivers (generally those
 * with a SQL interface) that support it at field creation time. OGR will
 * generally not automatically set the default field value to null fields by
 * itself when calling OGRFeature::CreateFeature() / OGRFeature::SetFeature(),
 * but will let the low-level layers to do the job. So retrieving the feature
 * from the layer is recommended.
 *
 * The accepted values are NULL, a numeric value, a literal value enclosed
 * between single quote characters (and inner single quote characters escaped by
 * repetition of the single quote character),
 * CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or
 * a driver specific expression (that might be ignored by other drivers).
 * For a datetime literal value, format should be 'YYYY/MM/DD HH:MM:SS[.sss]'
 * (considered as UTC time).
 *
 * Drivers that support writing DEFAULT clauses will advertise the
 * GDAL_DCAP_DEFAULT_FIELDS driver metadata item.
 *
 * This function is the same as the C++ method OGRFieldDefn::SetDefault().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition.
 * @param pszDefault new default field value or NULL pointer.
 *
 * @since GDAL 2.0
 */

void CPL_DLL OGR_Fld_SetDefault(OGRFieldDefnH hDefn, const char *pszDefault)
{
    OGRFieldDefn::FromHandle(hDefn)->SetDefault(pszDefault);
}

/************************************************************************/
/*                             GetDefault()                             */
/************************************************************************/

/**
 * \brief Get default field value.
 *
 * This function is the same as the C function OGR_Fld_GetDefault().
 *
 * @return default field value or NULL.
 * @since GDAL 2.0
 */

const char *OGRFieldDefn::GetDefault() const

{
    return pszDefault;
}

/************************************************************************/
/*                         OGR_Fld_GetDefault()                         */
/************************************************************************/

/**
 * \brief Get default field value.
 *
 * This function is the same as the C++ method OGRFieldDefn::GetDefault().
 *
 * @param hDefn handle to the field definition.
 * @return default field value or NULL.
 * @since GDAL 2.0
 */

const char *OGR_Fld_GetDefault(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->GetDefault();
}

/************************************************************************/
/*                        IsDefaultDriverSpecific()                     */
/************************************************************************/

/**
 * \brief Returns whether the default value is driver specific.
 *
 * Driver specific default values are those that are *not* NULL, a
 * numeric value, a literal value enclosed between single quote
 * characters, CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or
 * datetime literal value.
 *
 * This method is the same as the C function
 * OGR_Fld_IsDefaultDriverSpecific().
 *
 * @return TRUE if the default value is driver specific.
 * @since GDAL 2.0
 */

int OGRFieldDefn::IsDefaultDriverSpecific() const
{
    if (pszDefault == nullptr)
        return FALSE;

    if (EQUAL(pszDefault, "NULL") || EQUAL(pszDefault, "CURRENT_TIMESTAMP") ||
        EQUAL(pszDefault, "CURRENT_TIME") || EQUAL(pszDefault, "CURRENT_DATE"))
        return FALSE;

    if (pszDefault[0] == '\'' && pszDefault[strlen(pszDefault) - 1] == '\'')
        return FALSE;

    char *pszEnd = nullptr;
    CPLStrtod(pszDefault, &pszEnd);
    if (*pszEnd == '\0')
        return FALSE;

    return TRUE;
}

/************************************************************************/
/*                     OGR_Fld_IsDefaultDriverSpecific()                */
/************************************************************************/

/**
 * \brief Returns whether the default value is driver specific.
 *
 * Driver specific default values are those that are *not* NULL, a
 * numeric value, a literal value enclosed between single quote
 * characters, CURRENT_TIMESTAMP, CURRENT_TIME, CURRENT_DATE or
 * datetime literal value.
 *
 * This function is the same as the C++ method
 * OGRFieldDefn::IsDefaultDriverSpecific().
 *
 * @param hDefn handle to the field definition
 * @return TRUE if the default value is driver specific.
 * @since GDAL 2.0
 */

int OGR_Fld_IsDefaultDriverSpecific(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->IsDefaultDriverSpecific();
}

/************************************************************************/
/*                          GetFieldTypeName()                          */
/************************************************************************/

/**
 * \brief Fetch human readable name for a field type.
 *
 * This static method is the same as the C function OGR_GetFieldTypeName().
 *
 * @param eType the field type to get name for.
 *
 * @return pointer to an internal static name string. It should not be
 * modified or freed.
 */

const char *OGRFieldDefn::GetFieldTypeName(OGRFieldType eType)

{
    switch (eType)
    {
        case OFTInteger:
            return "Integer";

        case OFTInteger64:
            return "Integer64";

        case OFTReal:
            return "Real";

        case OFTString:
            return "String";

        case OFTIntegerList:
            return "IntegerList";

        case OFTInteger64List:
            return "Integer64List";

        case OFTRealList:
            return "RealList";

        case OFTStringList:
            return "StringList";

        case OFTBinary:
            return "Binary";

        case OFTDate:
            return "Date";

        case OFTTime:
            return "Time";

        case OFTDateTime:
            return "DateTime";

        case OFTWideString:
        case OFTWideStringList:
            break;
    }

    return "(unknown)";
}

/************************************************************************/
/*                        OGR_GetFieldTypeName()                        */
/************************************************************************/
/**
 * \brief Fetch human readable name for a field type.
 *
 * This function is the same as the CPP method
 * OGRFieldDefn::GetFieldTypeName().
 *
 * @param eType the field type to get name for.
 * @return the name.
 */

const char *OGR_GetFieldTypeName(OGRFieldType eType)

{
    return OGRFieldDefn::GetFieldTypeName(eType);
}

/************************************************************************/
/*                        GetFieldSubTypeName()                         */
/************************************************************************/

/**
 * \brief Fetch human readable name for a field subtype.
 *
 * This static method is the same as the C function OGR_GetFieldSubTypeName().
 *
 * @param eSubType the field subtype to get name for.
 *
 * @return pointer to an internal static name string. It should not be
 * modified or freed.
 *
 * @since GDAL 2.0
 */

const char *OGRFieldDefn::GetFieldSubTypeName(OGRFieldSubType eSubType)

{
    switch (eSubType)
    {
        case OFSTNone:
            break;

        case OFSTBoolean:
            return "Boolean";

        case OFSTInt16:
            return "Int16";

        case OFSTFloat32:
            return "Float32";

        case OFSTJSON:
            return "JSON";

        case OFSTUUID:
            return "UUID";
    }
    return "None";
}

/************************************************************************/
/*                       OGR_GetFieldSubTypeName()                      */
/************************************************************************/
/**
 * \brief Fetch human readable name for a field subtype.
 *
 * This function is the same as the CPP method
 * OGRFieldDefn::GetFieldSubTypeName().
 *
 * @param eSubType the field subtype to get name for.
 * @return the name.
 *
 * @since GDAL 2.0
 */

const char *OGR_GetFieldSubTypeName(OGRFieldSubType eSubType)

{
    return OGRFieldDefn::GetFieldSubTypeName(eSubType);
}

/************************************************************************/
/*                       OGR_IsValidTypeAndSubType()                    */
/************************************************************************/
/**
 * \brief Return if type and subtype are compatible
 *
 * @param eType the field type.
 * @param eSubType the field subtype.
 * @return TRUE if type and subtype are compatible
 *
 * @since GDAL 2.0
 */

int OGR_AreTypeSubTypeCompatible(OGRFieldType eType, OGRFieldSubType eSubType)
{
    if (eSubType == OFSTNone)
        return TRUE;
    if (eSubType == OFSTBoolean || eSubType == OFSTInt16)
        return eType == OFTInteger || eType == OFTIntegerList;
    if (eSubType == OFSTFloat32)
        return eType == OFTReal || eType == OFTRealList;
    if (eSubType == OFSTJSON)
        return eType == OFTString;
    if (eSubType == OFSTUUID)
        return eType == OFTString;
    return FALSE;
}

/************************************************************************/
/*                             GetJustify()                             */
/************************************************************************/

/**
 * \fn OGRJustification OGRFieldDefn::GetJustify() const;
 *
 * \brief Get the justification for this field.
 *
 * Note: no driver is know to use the concept of field justification.
 *
 * This method is the same as the C function OGR_Fld_GetJustify().
 *
 * @return the justification.
 */

/************************************************************************/
/*                         OGR_Fld_GetJustify()                         */
/************************************************************************/
/**
 * \brief Get the justification for this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetJustify().
 *
 * Note: no driver is know to use the concept of field justification.
 *
 * @param hDefn handle to the field definition to get justification from.
 * @return the justification.
 */

OGRJustification OGR_Fld_GetJustify(OGRFieldDefnH hDefn)

{
    return OGRFieldDefn::FromHandle(hDefn)->GetJustify();
}

/************************************************************************/
/*                             SetJustify()                             */
/************************************************************************/

/**
 * \fn void OGRFieldDefn::SetJustify( OGRJustification eJustify );
 *
 * \brief Set the justification for this field.
 *
 * Note: no driver is know to use the concept of field justification.
 *
 * This method is the same as the C function OGR_Fld_SetJustify().
 *
 * @param eJustify the new justification.
 */

/************************************************************************/
/*                         OGR_Fld_SetJustify()                         */
/************************************************************************/
/**
 * \brief Set the justification for this field.
 *
 * Note: no driver is know to use the concept of field justification.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetJustify().
 *
 * @param hDefn handle to the field definition to set justification to.
 * @param eJustify the new justification.
 */

void OGR_Fld_SetJustify(OGRFieldDefnH hDefn, OGRJustification eJustify)

{
    OGRFieldDefn::FromHandle(hDefn)->SetJustify(eJustify);
}

/************************************************************************/
/*                              GetWidth()                              */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::GetWidth() const;
 *
 * \brief Get the formatting width for this field.
 *
 * This method is the same as the C function OGR_Fld_GetWidth().
 *
 * @return the width, zero means no specified width.
 */

/************************************************************************/
/*                          OGR_Fld_GetWidth()                          */
/************************************************************************/
/**
 * \brief Get the formatting width for this field.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetWidth().
 *
 * @param hDefn handle to the field definition to get width from.
 * @return the width, zero means no specified width.
 */

int OGR_Fld_GetWidth(OGRFieldDefnH hDefn)

{
    return OGRFieldDefn::FromHandle(hDefn)->GetWidth();
}

/************************************************************************/
/*                              SetWidth()                              */
/************************************************************************/

/**
 * \brief Set the formatting width for this field in characters.
 *
 * This method is the same as the C function OGR_Fld_SetWidth().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param nWidthIn the new width.
 */
void OGRFieldDefn::SetWidth(int nWidthIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetWidth() not allowed on a sealed object");
        return;
    }
    nWidth = MAX(0, nWidthIn);
}

/************************************************************************/
/*                          OGR_Fld_SetWidth()                          */
/************************************************************************/
/**
 * \brief Set the formatting width for this field in characters.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetWidth().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set width to.
 * @param nNewWidth the new width.
 */

void OGR_Fld_SetWidth(OGRFieldDefnH hDefn, int nNewWidth)

{
    OGRFieldDefn::FromHandle(hDefn)->SetWidth(nNewWidth);
}

/************************************************************************/
/*                            GetPrecision()                            */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::GetPrecision() const;
 *
 * \brief Get the formatting precision for this field.
 * This should normally be
 * zero for fields of types other than OFTReal.
 *
 * This method is the same as the C function OGR_Fld_GetPrecision().
 *
 * @return the precision.
 */

/************************************************************************/
/*                        OGR_Fld_GetPrecision()                        */
/************************************************************************/
/**
 * \brief Get the formatting precision for this field.
 * This should normally be
 * zero for fields of types other than OFTReal.
 *
 * This function is the same as the CPP method OGRFieldDefn::GetPrecision().
 *
 * @param hDefn handle to the field definition to get precision from.
 * @return the precision.
 */

int OGR_Fld_GetPrecision(OGRFieldDefnH hDefn)

{
    return OGRFieldDefn::FromHandle(hDefn)->GetPrecision();
}

/************************************************************************/
/*                            SetPrecision()                            */
/************************************************************************/

/**
 * \brief Set the formatting precision for this field in characters.
 *
 * This should normally be zero for fields of types other than OFTReal.
 *
 * This method is the same as the C function OGR_Fld_SetPrecision().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param nPrecisionIn the new precision.
 */
void OGRFieldDefn::SetPrecision(int nPrecisionIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetPrecision() not allowed on a sealed object");
        return;
    }
    nPrecision = nPrecisionIn;
}

/************************************************************************/
/*                        OGR_Fld_SetPrecision()                        */
/************************************************************************/
/**
 * \brief Set the formatting precision for this field in characters.
 *
 * This should normally be zero for fields of types other than OFTReal.
 *
 * This function is the same as the CPP method OGRFieldDefn::SetPrecision().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set precision to.
 * @param nPrecision the new precision.
 */

void OGR_Fld_SetPrecision(OGRFieldDefnH hDefn, int nPrecision)

{
    OGRFieldDefn::FromHandle(hDefn)->SetPrecision(nPrecision);
}

/************************************************************************/
/*                            GetTZFlag()                               */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::GetTZFlag() const;
 *
 * \brief Get the time zone flag.
 *
 * Only applies to OFTTime, OFTDate and OFTDateTime fields.
 *
 * Cf OGR_TZFLAG_UNKNOWN, OGR_TZFLAG_LOCALTIME, OGR_TZFLAG_MIXED_TZ and
 * OGR_TZFLAG_UTC
 *
 * This method is the same as the C function OGR_Fld_GetTZFlag().
 *
 * @return the time zone flag.
 * @since GDAL 3.8
 */

/************************************************************************/
/*                        OGR_Fld_GetTZFlag()                           */
/************************************************************************/
/**
 * \brief Get the time zone flag.
 *
 * Only applies to OFTTime, OFTDate and OFTDateTime fields.
 *
 * Cf OGR_TZFLAG_UNKNOWN, OGR_TZFLAG_LOCALTIME, OGR_TZFLAG_MIXED_TZ and
 * OGR_TZFLAG_UTC
 *
 * @param hDefn handle to the field definition .
 * @return the time zone flag.
 * @since GDAL 3.8
 */

int OGR_Fld_GetTZFlag(OGRFieldDefnH hDefn)

{
    return OGRFieldDefn::FromHandle(hDefn)->GetTZFlag();
}

/************************************************************************/
/*                             SetTZFlag()                              */
/************************************************************************/

/**
 * \brief Set the time zone flag.
 *
 * Only applies to OFTTime, OFTDate and OFTDateTime fields.
 *
 * Cf OGR_TZFLAG_UNKNOWN, OGR_TZFLAG_LOCALTIME, OGR_TZFLAG_MIXED_TZ and
 * OGR_TZFLAG_UTC
 *
 * This method is the same as the C function OGR_Fld_SetTZFlag().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param nTZFlag the new time zone flag.
 * @since GDAL 3.8
 */
void OGRFieldDefn::SetTZFlag(int nTZFlag)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetTZFlag() not allowed on a sealed object");
        return;
    }
    m_nTZFlag = nTZFlag;
}

/************************************************************************/
/*                         OGR_Fld_SetTZFlag()                          */
/************************************************************************/
/**
 * \brief Set the formatting precision for this field in characters.
 *
 * Set the time zone flag.
 *
 * Only applies to OFTTime, OFTDate and OFTDateTime fields.
 *
 * Cf OGR_TZFLAG_UNKNOWN, OGR_TZFLAG_LOCALTIME, OGR_TZFLAG_MIXED_TZ and
 * OGR_TZFLAG_UTC
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set precision to.
 * @param nTZFlag the new time zone flag.
 * @since GDAL 3.8
 */

void OGR_Fld_SetTZFlag(OGRFieldDefnH hDefn, int nTZFlag)

{
    OGRFieldDefn::FromHandle(hDefn)->SetTZFlag(nTZFlag);
}

/************************************************************************/
/*                                Set()                                 */
/************************************************************************/

/**
 * \brief Set defining parameters for a field in one call.
 *
 * This method is the same as the C function OGR_Fld_Set().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param pszNameIn the new name to assign.
 * @param eTypeIn the new type (one of the OFT values like OFTInteger).
 * @param nWidthIn the preferred formatting width.  Defaults to zero indicating
 * undefined.
 * @param nPrecisionIn number of decimals places for formatting, defaults to
 * zero indicating undefined.
 * @param eJustifyIn the formatting justification (OJLeft or OJRight), defaults
 * to OJUndefined.
 */

void OGRFieldDefn::Set(const char *pszNameIn, OGRFieldType eTypeIn,
                       int nWidthIn, int nPrecisionIn,
                       OGRJustification eJustifyIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::Set() not allowed on a sealed object");
        return;
    }
    SetName(pszNameIn);
    SetType(eTypeIn);
    SetWidth(nWidthIn);
    SetPrecision(nPrecisionIn);
    SetJustify(eJustifyIn);
}

/************************************************************************/
/*                            OGR_Fld_Set()                             */
/************************************************************************/
/**
 * \brief Set defining parameters for a field in one call.
 *
 * This function is the same as the CPP method OGRFieldDefn::Set().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn.
 *
 * @param hDefn handle to the field definition to set to.
 * @param pszNameIn the new name to assign.
 * @param eTypeIn the new type (one of the OFT values like OFTInteger).
 * @param nWidthIn the preferred formatting width.  Defaults to zero indicating
 * undefined.
 * @param nPrecisionIn number of decimals places for formatting, defaults to
 * zero indicating undefined.
 * @param eJustifyIn the formatting justification (OJLeft or OJRight), defaults
 * to OJUndefined.
 */

void OGR_Fld_Set(OGRFieldDefnH hDefn, const char *pszNameIn,
                 OGRFieldType eTypeIn, int nWidthIn, int nPrecisionIn,
                 OGRJustification eJustifyIn)

{
    OGRFieldDefn::FromHandle(hDefn)->Set(pszNameIn, eTypeIn, nWidthIn,
                                         nPrecisionIn, eJustifyIn);
}

/************************************************************************/
/*                             IsIgnored()                              */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::IsIgnored() const;
 *
 * \brief Return whether this field should be omitted when fetching features
 *
 * This method is the same as the C function OGR_Fld_IsIgnored().
 *
 * @return ignore state
 */

/************************************************************************/
/*                         OGR_Fld_IsIgnored()                          */
/************************************************************************/

/**
 * \brief Return whether this field should be omitted when fetching features
 *
 * This method is the same as the C++ method OGRFieldDefn::IsIgnored().
 *
 * @param hDefn handle to the field definition
 * @return ignore state
 */

int OGR_Fld_IsIgnored(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->IsIgnored();
}

/************************************************************************/
/*                            SetIgnored()                              */
/************************************************************************/

/**
 * \fn void OGRFieldDefn::SetIgnored( int ignore );
 *
 * \brief Set whether this field should be omitted when fetching features
 *
 * This method is the same as the C function OGR_Fld_SetIgnored().
 *
 * This method should not be called on a object returned with
 * OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead, the
 * OGRLayer::SetIgnoredFields() method should be called.
 *
 * @param ignore ignore state
 */

/************************************************************************/
/*                        OGR_Fld_SetIgnored()                          */
/************************************************************************/

/**
 * \brief Set whether this field should be omitted when fetching features
 *
 * This method is the same as the C++ method OGRFieldDefn::SetIgnored().
 *
 * This method should not be called on a object returned with
 * OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead, the
 * OGRLayer::SetIgnoredFields() method should be called.
 *
 * @param hDefn handle to the field definition
 * @param ignore ignore state
 */

void OGR_Fld_SetIgnored(OGRFieldDefnH hDefn, int ignore)
{
    OGRFieldDefn::FromHandle(hDefn)->SetIgnored(ignore);
}

/************************************************************************/
/*                             IsSame()                                 */
/************************************************************************/

/**
 * \brief Test if the field definition is identical to the other one.
 *
 * @param poOtherFieldDefn the other field definition to compare to.
 * @return TRUE if the field definition is identical to the other one.
 */

int OGRFieldDefn::IsSame(const OGRFieldDefn *poOtherFieldDefn) const
{
    return strcmp(pszName, poOtherFieldDefn->pszName) == 0 &&
           strcmp(pszAlternativeName, poOtherFieldDefn->pszAlternativeName) ==
               0 &&
           eType == poOtherFieldDefn->eType &&
           eSubType == poOtherFieldDefn->eSubType &&
           nWidth == poOtherFieldDefn->nWidth &&
           nPrecision == poOtherFieldDefn->nPrecision &&
           bNullable == poOtherFieldDefn->bNullable &&
           m_osComment == poOtherFieldDefn->m_osComment &&
           m_nTZFlag == poOtherFieldDefn->m_nTZFlag;
}

/************************************************************************/
/*                             IsNullable()                             */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::IsNullable() const
 *
 * \brief Return whether this field can receive null values.
 *
 * By default, fields are nullable.
 *
 * Even if this method returns FALSE (i.e not-nullable field), it doesn't mean
 * that OGRFeature::IsFieldSet() will necessary return TRUE, as fields can be
 * temporary unset and null/not-null validation is usually done when
 * OGRLayer::CreateFeature()/SetFeature() is called.
 *
 * This method is the same as the C function OGR_Fld_IsNullable().
 *
 * @return TRUE if the field is authorized to be null.
 * @since GDAL 2.0
 */

/************************************************************************/
/*                         OGR_Fld_IsNullable()                         */
/************************************************************************/

/**
 * \brief Return whether this field can receive null values.
 *
 * By default, fields are nullable.
 *
 * Even if this method returns FALSE (i.e not-nullable field), it doesn't mean
 * that OGRFeature::IsFieldSet() will necessary return TRUE, as fields can be
 * temporary unset and null/not-null validation is usually done when
 * OGRLayer::CreateFeature()/SetFeature() is called.
 *
 * This method is the same as the C++ method OGRFieldDefn::IsNullable().
 *
 * @param hDefn handle to the field definition
 * @return TRUE if the field is authorized to be null.
 * @since GDAL 2.0
 */

int OGR_Fld_IsNullable(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->IsNullable();
}

/************************************************************************/
/*                            SetNullable()                             */
/************************************************************************/

/**
 * \fn void OGRFieldDefn::SetNullable( int bNullableIn );
 *
 * \brief Set whether this field can receive null values.
 *
 * By default, fields are nullable, so this method is generally called with
 * FALSE to set a not-null constraint.
 *
 * Drivers that support writing not-null constraint will advertise the
 * GDAL_DCAP_NOTNULL_FIELDS driver metadata item.
 *
 * This method is the same as the C function OGR_Fld_SetNullable().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param bNullableIn FALSE if the field must have a not-null constraint.
 * @since GDAL 2.0
 */
void OGRFieldDefn::SetNullable(int bNullableIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetNullable() not allowed on a sealed object");
        return;
    }
    bNullable = bNullableIn;
}

/************************************************************************/
/*                        OGR_Fld_SetNullable()                          */
/************************************************************************/

/**
 * \brief Set whether this field can receive null values.
 *
 * By default, fields are nullable, so this method is generally called with
 * FALSE to set a not-null constraint.
 *
 * Drivers that support writing not-null constraint will advertise the
 * GDAL_DCAP_NOTNULL_FIELDS driver metadata item.
 *
 * This method is the same as the C++ method OGRFieldDefn::SetNullable().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the field definition
 * @param bNullableIn FALSE if the field must have a not-null constraint.
 * @since GDAL 2.0
 */

void OGR_Fld_SetNullable(OGRFieldDefnH hDefn, int bNullableIn)
{
    OGRFieldDefn::FromHandle(hDefn)->SetNullable(bNullableIn);
}

/************************************************************************/
/*                             IsUnique()                               */
/************************************************************************/

/**
 * \fn int OGRFieldDefn::IsUnique() const
 *
 * \brief Return whether this field has a unique constraint.
 *
 * By default, fields have no unique constraint.
 *
 * This method is the same as the C function OGR_Fld_IsUnique().
 *
 * @return TRUE if the field has a unique constraint.
 * @since GDAL 3.2
 */

/************************************************************************/
/*                         OGR_Fld_IsUnique()                         */
/************************************************************************/

/**
 * \brief Return whether this field has a unique constraint.
 *
 * By default, fields have no unique constraint.
 *
 * This method is the same as the C++ method OGRFieldDefn::IsUnique().
 *
 * @param hDefn handle to the field definition
 * @return TRUE if the field has a unique constraint.
 * @since GDAL 3.2
 */

int OGR_Fld_IsUnique(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->IsUnique();
}

/*********************************************************  ***************/
/*                            SetUnique()                             */
/************************************************************************/

/**
 * \brief Set whether this field has a unique constraint.
 *
 * By default, fields have no unique constraint, so this method is generally
 * called with TRUE to set a unique constraint.
 *
 * Drivers that support writing unique constraint will advertise the
 * GDAL_DCAP_UNIQUE_FIELDS driver metadata item.
 *
 * This method is the same as the C function OGR_Fld_SetUnique().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param bUniqueIn TRUE if the field must have a unique constraint.
 * @since GDAL 3.2
 */
void OGRFieldDefn::SetUnique(int bUniqueIn)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetUnique() not allowed on a sealed object");
        return;
    }
    bUnique = bUniqueIn;
}

/************************************************************************/
/*                        OGR_Fld_SetUnique()                            */
/************************************************************************/

/**
 * \brief Set whether this field has a unique constraint.
 *
 * By default, fields have no unique constraint, so this method is generally
 *called with TRUE to set a unique constraint.
 *
 * Drivers that support writing unique constraint will advertise the
 * GDAL_DCAP_UNIQUE_FIELDS driver metadata item.
 *field can receive null values.
 *
 * This method is the same as the C++ method OGRFieldDefn::SetUnique().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the field definition
 * @param bUniqueIn TRUE if the field must have a unique constraint.
 * @since GDAL 3.2
 */

void OGR_Fld_SetUnique(OGRFieldDefnH hDefn, int bUniqueIn)
{
    OGRFieldDefn::FromHandle(hDefn)->SetUnique(bUniqueIn);
}

/************************************************************************/
/*                           GetDomainName()                            */
/************************************************************************/

/**
 * \fn const std::string& OGRFieldDefn::GetDomainName() const
 *
 * \brief Return the name of the field domain for this field.
 *
 * By default, none (empty string) is returned.
 *
 * Field domains (OGRFieldDomain class) are attached at the GDALDataset level
 * and should be retrieved with GDALDataset::GetFieldDomain().
 *
 * This method is the same as the C function OGR_Fld_GetDomainName().
 *
 * @return the field domain name, or an empty string if there is none.
 * @since GDAL 3.3
 */

/************************************************************************/
/*                      OGR_Fld_GetDomainName()                         */
/************************************************************************/

/**
 * \brief Return the name of the field domain for this field.
 *
 * By default, none (empty string) is returned.
 *
 * Field domains (OGRFieldDomain class) are attached at the GDALDataset level
 * and should be retrieved with GDALDatasetGetFieldDomain().
 *
 * This method is the same as the C++ method OGRFieldDefn::GetDomainName().
 *
 * @param hDefn handle to the field definition
 * @return the field domain name, or an empty string if there is none.
 * @since GDAL 3.3
 */

const char *OGR_Fld_GetDomainName(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->GetDomainName().c_str();
}

/************************************************************************/
/*                           SetDomainName()                            */
/************************************************************************/

/**
 * \brief Set the name of the field domain for this field.
 *
 * Field domains (OGRFieldDomain) are attached at the GDALDataset level.
 *
 * This method is the same as the C function OGR_Fld_SetDomainName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param osDomainName Field domain name.
 * @since GDAL 3.3
 */
void OGRFieldDefn::SetDomainName(const std::string &osDomainName)
{
    if (m_bSealed)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "OGRFieldDefn::SetDomainName() not allowed on a sealed object");
        return;
    }
    m_osDomainName = osDomainName;
}

/************************************************************************/
/*                      OGR_Fld_SetDomainName()                         */
/************************************************************************/

/**
 * \brief Set the name of the field domain for this field.
 *
 * Field domains (OGRFieldDomain) are attached at the GDALDataset level.
 *
 * This method is the same as the C++ method OGRFieldDefn::SetDomainName().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the field definition
 * @param pszFieldName Field domain name.
 * @since GDAL 3.3
 */

void OGR_Fld_SetDomainName(OGRFieldDefnH hDefn, const char *pszFieldName)
{
    OGRFieldDefn::FromHandle(hDefn)->SetDomainName(pszFieldName ? pszFieldName
                                                                : "");
}

/************************************************************************/
/*                           GetComment()                               */
/************************************************************************/

/**
 * \fn const std::string& OGRFieldDefn::GetComment() const
 *
 * \brief Return the (optional) comment for this field.
 *
 * By default, none (empty string) is returned.
 *
 * This method is the same as the C function OGR_Fld_GetComment().
 *
 * @return the field comment, or an empty string if there is none.
 * @since GDAL 3.7
 */

/************************************************************************/
/*                      OGR_Fld_GetComment()                            */
/************************************************************************/

/**
 * \brief Return the (optional) comment for this field.
 *
 * By default, none (empty string) is returned.
 *
 * This method is the same as the C++ method OGRFieldDefn::GetComment().
 *
 * @param hDefn handle to the field definition
 * @return the comment, or an empty string if there is none.
 * @since GDAL 3.7
 */

const char *OGR_Fld_GetComment(OGRFieldDefnH hDefn)
{
    return OGRFieldDefn::FromHandle(hDefn)->GetComment().c_str();
}

/************************************************************************/
/*                           SetComment()                               */
/************************************************************************/

/**
 * \brief Set the comment for this field.
 *
 * This method is the same as the C function OGR_Fld_SetComment().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param osComment Field comment.
 * @since GDAL 3.7
 */
void OGRFieldDefn::SetComment(const std::string &osComment)
{
    if (m_bSealed)
    {
        CPLError(CE_Failure, CPLE_AppDefined,
                 "OGRFieldDefn::SetComment() not allowed on a sealed object");
        return;
    }
    m_osComment = osComment;
}

/************************************************************************/
/*                      OGR_Fld_SetComment()                            */
/************************************************************************/

/**
 * \brief Set the comment for this field.
 *
 * This method is the same as the C++ method OGRFieldDefn::SetComment().
 *
 * Note that once a OGRFieldDefn has been added to a layer definition with
 * OGRLayer::AddFieldDefn(), its setter methods should not be called on the
 * object returned with OGRLayer::GetLayerDefn()->GetFieldDefn(). Instead,
 * OGRLayer::AlterFieldDefn() should be called on a new instance of
 * OGRFieldDefn, for drivers that support AlterFieldDefn().
 *
 * @param hDefn handle to the field definition
 * @param pszComment Field comment.
 * @since GDAL 3.7
 */

void OGR_Fld_SetComment(OGRFieldDefnH hDefn, const char *pszComment)
{
    OGRFieldDefn::FromHandle(hDefn)->SetComment(pszComment ? pszComment : "");
}

/************************************************************************/
/*                        OGRUpdateFieldType()                          */
/************************************************************************/

/**
 * \brief Update the type of a field definition by "merging" its existing type
 * with a new type.
 *
 * The update is done such as broadening the type. For example a OFTInteger
 * updated with OFTInteger64 will be promoted to OFTInteger64.
 *
 * @param poFDefn the field definition whose type must be updated.
 * @param eNewType the new field type to merge into the existing type.
 * @param eNewSubType the new field subtype to merge into the existing subtype.
 * @since GDAL 2.1
 */

void OGRUpdateFieldType(OGRFieldDefn *poFDefn, OGRFieldType eNewType,
                        OGRFieldSubType eNewSubType)
{
    OGRFieldType eType = poFDefn->GetType();
    if (eType == OFTInteger)
    {
        if (eNewType == OFTInteger && poFDefn->GetSubType() == OFSTBoolean &&
            eNewSubType != OFSTBoolean)
        {
            poFDefn->SetSubType(OFSTNone);
        }
        else if (eNewType == OFTInteger64 || eNewType == OFTReal)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(eNewType);
        }
        else if (eNewType == OFTIntegerList || eNewType == OFTInteger64List ||
                 eNewType == OFTRealList || eNewType == OFTStringList)
        {
            if (eNewType != OFTIntegerList || eNewSubType != OFSTBoolean)
                poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(eNewType);
        }
        else if (eNewType != OFTInteger)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTString);
        }
    }
    else if (eType == OFTInteger64)
    {
        if (eNewType == OFTReal)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(eNewType);
        }
        else if (eNewType == OFTIntegerList)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTInteger64List);
        }
        else if (eNewType == OFTInteger64List || eNewType == OFTRealList ||
                 eNewType == OFTStringList)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(eNewType);
        }
        else if (eNewType != OFTInteger && eNewType != OFTInteger64)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTString);
        }
    }
    else if (eType == OFTReal)
    {
        if (eNewType == OFTIntegerList || eNewType == OFTInteger64List ||
            eNewType == OFTRealList)
        {
            poFDefn->SetType(OFTRealList);
        }
        else if (eNewType == OFTStringList)
        {
            poFDefn->SetType(OFTStringList);
        }
        else if (eNewType != OFTInteger && eNewType != OFTInteger64 &&
                 eNewType != OFTReal)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTString);
        }
    }
    else if (eType == OFTIntegerList)
    {
        if (eNewType == OFTIntegerList &&
            poFDefn->GetSubType() == OFSTBoolean && eNewSubType != OFSTBoolean)
        {
            poFDefn->SetSubType(OFSTNone);
        }
        else if (eNewType == OFTInteger64 || eNewType == OFTInteger64List)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTInteger64List);
        }
        else if (eNewType == OFTReal || eNewType == OFTRealList)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTRealList);
        }
        else if (eNewType != OFTInteger && eNewType != OFTIntegerList)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTStringList);
        }
    }
    else if (eType == OFTInteger64List)
    {
        if (eNewType == OFTReal || eNewType == OFTRealList)
            poFDefn->SetType(OFTRealList);
        else if (eNewType != OFTInteger && eNewType != OFTInteger64 &&
                 eNewType != OFTIntegerList && eNewType != OFTInteger64List)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTStringList);
        }
    }
    else if (eType == OFTRealList)
    {
        if (eNewType != OFTInteger && eNewType != OFTInteger64 &&
            eNewType != OFTReal && eNewType != OFTIntegerList &&
            eNewType != OFTInteger64List && eNewType != OFTRealList)
        {
            poFDefn->SetSubType(OFSTNone);
            poFDefn->SetType(OFTStringList);
        }
    }
    else if (eType == OFTDateTime)
    {
        if (eNewType != OFTDateTime && eNewType != OFTDate)
        {
            poFDefn->SetType(OFTString);
        }
    }
    else if (eType == OFTDate || eType == OFTTime)
    {
        if (eNewType == OFTDateTime)
            poFDefn->SetType(OFTDateTime);
        else if (eNewType != eType)
            poFDefn->SetType(OFTString);
    }
    else if (eType == OFTString && eNewType == OFTStringList)
    {
        poFDefn->SetType(OFTStringList);
    }
}

/************************************************************************/
/*                        OGRFieldDefn::Seal()                          */
/************************************************************************/

/** Seal a OGRFieldDefn.
 *
 * A sealed OGRFieldDefn can not be modified while it is sealed.
 *
 * This method should only be called by driver implementations.
 *
 * @since GDAL 3.9
 */
void OGRFieldDefn::Seal()
{
    m_bSealed = true;
}

/************************************************************************/
/*                        OGRFieldDefn::Unseal()                        */
/************************************************************************/

/** Unseal a OGRFieldDefn.
 *
 * Undo OGRFieldDefn::Seal()
 *
 * Using GetTemporaryUnsealer() is recommended for most use cases.
 *
 * This method should only be called by driver implementations.
 *
 * @since GDAL 3.9
 */
void OGRFieldDefn::Unseal()
{
    m_bSealed = false;
}

/************************************************************************/
/*                    OGRFieldDefn::GetTemporaryUnsealer()              */
/************************************************************************/

/** Return an object that temporary unseals the OGRFieldDefn
 *
 * The returned object calls Unseal() initially, and when it is destroyed
 * it calls Seal().
 *
 * This method should only be called by driver implementations.
 *
 * It is also possible to use the helper method whileUnsealing(). Example:
 * whileUnsealing(poFieldDefn)->some_method()
 *
 * @since GDAL 3.9
 */
OGRFieldDefn::TemporaryUnsealer OGRFieldDefn::GetTemporaryUnsealer()
{
    return TemporaryUnsealer(this);
}

/************************************************************************/
/*                          OGRFieldDomain()                            */
/************************************************************************/

/*! @cond Doxygen_Suppress */
OGRFieldDomain::OGRFieldDomain(const std::string &osName,
                               const std::string &osDescription,
                               OGRFieldDomainType eDomainType,
                               OGRFieldType eFieldType,
                               OGRFieldSubType eFieldSubType)
    : m_osName(osName), m_osDescription(osDescription),
      m_eDomainType(eDomainType), m_eFieldType(eFieldType),
      m_eFieldSubType(eFieldSubType)
{
}
/*! @endcond */

/************************************************************************/
/*                         ~OGRFieldDomain()                            */
/************************************************************************/

OGRFieldDomain::~OGRFieldDomain() = default;

/************************************************************************/
/*                         ~OGRFieldDomain()                            */
/************************************************************************/

/** Destroy a field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::~OGRFieldDomain()
 *
 * @param hFieldDomain the field domain.
 * @since GDAL 3.3
 */
void OGR_FldDomain_Destroy(OGRFieldDomainH hFieldDomain)
{
    delete OGRFieldDomain::FromHandle(hFieldDomain);
}

/************************************************************************/
/*                        OGRCodedFieldDomain()                         */
/************************************************************************/

OGRCodedFieldDomain::OGRCodedFieldDomain(const std::string &osName,
                                         const std::string &osDescription,
                                         OGRFieldType eFieldType,
                                         OGRFieldSubType eFieldSubType,
                                         std::vector<OGRCodedValue> &&asValues)
    : OGRFieldDomain(osName, osDescription, OFDT_CODED, eFieldType,
                     eFieldSubType),
      m_asValues(std::move(asValues))
{
    // Guard
    if (m_asValues.empty() || m_asValues.back().pszCode != nullptr)
    {
        OGRCodedValue cv;
        cv.pszCode = nullptr;
        cv.pszValue = nullptr;
        m_asValues.emplace_back(cv);
    }
}

/************************************************************************/
/*                     OGR_CodedFldDomain_Create()                      */
/************************************************************************/

/** Creates a new coded field domain.
 *
 * This is the same as the C++ method OGRCodedFieldDomain::OGRCodedFieldDomain()
 * (except that the C function copies the enumeration, whereas the C++
 * method moves it)
 *
 * @param pszName        Domain name. Should not be NULL.
 * @param pszDescription Domain description (can be NULL)
 * @param eFieldType     Field type. Generally numeric. Potentially OFTDateTime
 * @param eFieldSubType  Field subtype.
 * @param enumeration    Enumeration as (code, value) pairs. Should not be
 *                       NULL. The end of the enumeration is marked by a code
 *                       set to NULL. The enumeration will be copied.
 *                       Each code should appear only once, but it is the
 *                       responsibility of the user to check it.
 * @return a new handle that should be freed with OGR_FldDomain_Destroy(),
 *         or NULL in case of error.
 * @since GDAL 3.3
 */
OGRFieldDomainH OGR_CodedFldDomain_Create(const char *pszName,
                                          const char *pszDescription,
                                          OGRFieldType eFieldType,
                                          OGRFieldSubType eFieldSubType,
                                          const OGRCodedValue *enumeration)
{
    VALIDATE_POINTER1(pszName, __func__, nullptr);
    VALIDATE_POINTER1(enumeration, __func__, nullptr);
    size_t count = 0;
    for (int i = 0; enumeration[i].pszCode != nullptr; ++i)
    {
        ++count;
    }
    std::vector<OGRCodedValue> asValues;
    try
    {
        asValues.reserve(count + 1);
    }
    catch (const std::exception &e)
    {
        CPLError(CE_Failure, CPLE_OutOfMemory, "%s", e.what());
        return nullptr;
    }
    bool error = false;
    for (int i = 0; enumeration[i].pszCode != nullptr; ++i)
    {
        OGRCodedValue cv;
        cv.pszCode = VSI_STRDUP_VERBOSE(enumeration[i].pszCode);
        if (cv.pszCode == nullptr)
        {
            error = true;
            break;
        }
        if (enumeration[i].pszValue)
        {
            cv.pszValue = VSI_STRDUP_VERBOSE(enumeration[i].pszValue);
            if (cv.pszValue == nullptr)
            {
                VSIFree(cv.pszCode);
                error = true;
                break;
            }
        }
        else
        {
            cv.pszValue = nullptr;
        }
        asValues.emplace_back(cv);
    }
    if (error)
    {
        for (auto &cv : asValues)
        {
            VSIFree(cv.pszCode);
            VSIFree(cv.pszValue);
        }
        return nullptr;
    }
    // Add guard
    {
        OGRCodedValue cv;
        cv.pszCode = nullptr;
        cv.pszValue = nullptr;
        asValues.emplace_back(cv);
    }
    return OGRFieldDomain::ToHandle(new OGRCodedFieldDomain(
        pszName, pszDescription ? pszDescription : "", eFieldType,
        eFieldSubType, std::move(asValues)));
}

/************************************************************************/
/*                   OGRCodedFieldDomain::Clone()                       */
/************************************************************************/

OGRCodedFieldDomain *OGRCodedFieldDomain::Clone() const
{
    auto poDomain = cpl::down_cast<OGRCodedFieldDomain *>(
        OGRFieldDomain::FromHandle(OGR_CodedFldDomain_Create(
            m_osName.c_str(), m_osDescription.c_str(), m_eFieldType,
            m_eFieldSubType, m_asValues.data())));
    poDomain->SetMergePolicy(m_eMergePolicy);
    poDomain->SetSplitPolicy(m_eSplitPolicy);
    return poDomain;
}

/************************************************************************/
/*                      ~OGRCodedFieldDomain()                          */
/************************************************************************/

OGRCodedFieldDomain::~OGRCodedFieldDomain()
{
    for (auto &cv : m_asValues)
    {
        CPLFree(cv.pszCode);
        CPLFree(cv.pszValue);
    }
}

/************************************************************************/
/*                       OGRRangeFieldDomain()                          */
/************************************************************************/

OGRRangeFieldDomain::OGRRangeFieldDomain(
    const std::string &osName, const std::string &osDescription,
    OGRFieldType eFieldType, OGRFieldSubType eFieldSubType,
    const OGRField &sMin, bool bMinIsInclusive, const OGRField &sMax,
    bool bMaxIsInclusive)
    : OGRFieldDomain(osName, osDescription, OFDT_RANGE, eFieldType,
                     eFieldSubType),
      m_sMin(sMin), m_sMax(sMax), m_bMinIsInclusive(bMinIsInclusive),
      m_bMaxIsInclusive(bMaxIsInclusive)
{
    CPLAssert(eFieldType == OFTInteger || eFieldType == OFTInteger64 ||
              eFieldType == OFTReal || eFieldType == OFTDateTime);
}

/************************************************************************/
/*                     OGR_RangeFldDomain_Create()                      */
/************************************************************************/

static OGRField GetUnsetField()
{
    OGRField sUnset;
    OGR_RawField_SetUnset(&sUnset);
    return sUnset;
}

/** Creates a new range field domain.
 *
 * This is the same as the C++ method
 * OGRRangeFieldDomain::OGRRangeFieldDomain().
 *
 * @param pszName        Domain name. Should not be NULL.
 * @param pszDescription Domain description (can be NULL)
 * @param eFieldType     Field type. Among OFTInteger, OFTInteger64, OFTReal
 *                       and OFTDateTime.
 * @param eFieldSubType  Field subtype.
 * @param psMin          Minimum value (can be NULL). The member in the union
 *                       that is read is consistent with eFieldType
 * @param bMinIsInclusive Whether the minimum value is included in the range.
 * @param psMax          Maximum value (can be NULL). The member in the union
 *                       that is read is consistent with eFieldType
 * @param bMaxIsInclusive Whether the maximum value is included in the range.
 * @return a new handle that should be freed with OGR_FldDomain_Destroy()
 * @since GDAL 3.3
 */
OGRFieldDomainH OGR_RangeFldDomain_Create(
    const char *pszName, const char *pszDescription, OGRFieldType eFieldType,
    OGRFieldSubType eFieldSubType, const OGRField *psMin, bool bMinIsInclusive,
    const OGRField *psMax, bool bMaxIsInclusive)
{
    VALIDATE_POINTER1(pszName, __func__, nullptr);
    if (eFieldType != OFTInteger && eFieldType != OFTInteger64 &&
        eFieldType != OFTReal && eFieldType != OFTDateTime)
    {
        CPLError(CE_Failure, CPLE_NotSupported, "Unsupported field type");
        return nullptr;
    }
    const OGRField unsetField = GetUnsetField();
    return OGRFieldDomain::ToHandle(new OGRRangeFieldDomain(
        pszName, pszDescription ? pszDescription : "", eFieldType,
        eFieldSubType, psMin ? *psMin : unsetField, bMinIsInclusive,
        psMax ? *psMax : unsetField, bMaxIsInclusive));
}

/************************************************************************/
/*                        OGRGlobFieldDomain()                          */
/************************************************************************/

OGRGlobFieldDomain::OGRGlobFieldDomain(const std::string &osName,
                                       const std::string &osDescription,
                                       OGRFieldType eFieldType,
                                       OGRFieldSubType eFieldSubType,
                                       const std::string &osGlob)
    : OGRFieldDomain(osName, osDescription, OFDT_GLOB, eFieldType,
                     eFieldSubType),
      m_osGlob(osGlob)
{
}

/************************************************************************/
/*                       OGR_GlobFldDomain_Create()                     */
/************************************************************************/

/** Creates a new blob field domain.
 *
 * This is the same as the C++ method OGRGlobFieldDomain::OGRGlobFieldDomain()
 *
 * @param pszName        Domain name. Should not be NULL.
 * @param pszDescription Domain description (can be NULL)
 * @param eFieldType     Field type.
 * @param eFieldSubType  Field subtype.
 * @param pszGlob        Glob expression. Should not be NULL.
 * @return a new handle that should be freed with OGR_FldDomain_Destroy()
 * @since GDAL 3.3
 */
OGRFieldDomainH OGR_GlobFldDomain_Create(const char *pszName,
                                         const char *pszDescription,
                                         OGRFieldType eFieldType,
                                         OGRFieldSubType eFieldSubType,
                                         const char *pszGlob)
{
    VALIDATE_POINTER1(pszName, __func__, nullptr);
    VALIDATE_POINTER1(pszGlob, __func__, nullptr);
    return OGRFieldDomain::ToHandle(
        new OGRGlobFieldDomain(pszName, pszDescription ? pszDescription : "",
                               eFieldType, eFieldSubType, pszGlob));
}

/************************************************************************/
/*                       OGR_FldDomain_GetName()                        */
/************************************************************************/

/** Get the name of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetName()
 *
 * @param hFieldDomain Field domain handle.
 * @return the field domain name.
 * @since GDAL 3.3
 */
const char *OGR_FldDomain_GetName(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetName().c_str();
}

/************************************************************************/
/*                     OGR_FldDomain_GetDescription()                   */
/************************************************************************/

/** Get the description of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetDescription()
 *
 * @param hFieldDomain Field domain handle.
 * @return the field domain description (might be empty string).
 * @since GDAL 3.3
 */
const char *OGR_FldDomain_GetDescription(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetDescription().c_str();
}

/************************************************************************/
/*                     OGR_FldDomain_GetDomainType()                    */
/************************************************************************/

/** Get the type of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetDomainType()
 *
 * @param hFieldDomain Field domain handle.
 * @return the type of the field domain.
 * @since GDAL 3.3
 */
OGRFieldDomainType OGR_FldDomain_GetDomainType(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetDomainType();
}

/************************************************************************/
/*                     OGR_FldDomain_GetFieldType()                     */
/************************************************************************/

/** Get the field type of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetFieldType()
 *
 * @param hFieldDomain Field domain handle.
 * @return the field type of the field domain.
 * @since GDAL 3.3
 */
OGRFieldType OGR_FldDomain_GetFieldType(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetFieldType();
}

/************************************************************************/
/*                   OGR_FldDomain_GetFieldSubType()                    */
/************************************************************************/

/** Get the field subtype of the field domain.
 *
 * This is the same as OGRFieldDomain::GetFieldSubType()
 *
 * @param hFieldDomain Field domain handle.
 * @return the field subtype of the field domain.
 * @since GDAL 3.3
 */
OGRFieldSubType OGR_FldDomain_GetFieldSubType(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetFieldSubType();
}

/************************************************************************/
/*                    OGR_FldDomain_GetSplitPolicy()                    */
/************************************************************************/

/** Get the split policy of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetSplitPolicy()
 *
 * @param hFieldDomain Field domain handle.
 * @return the split policy of the field domain.
 * @since GDAL 3.3
 */

OGRFieldDomainSplitPolicy
OGR_FldDomain_GetSplitPolicy(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetSplitPolicy();
}

/************************************************************************/
/*                    OGR_FldDomain_SetSplitPolicy()                    */
/************************************************************************/

/** Set the split policy of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::SetSplitPolicy()
 *
 * @param hFieldDomain Field domain handle.
 * @param policy the split policy of the field domain.
 * @since GDAL 3.3
 */

void OGR_FldDomain_SetSplitPolicy(OGRFieldDomainH hFieldDomain,
                                  OGRFieldDomainSplitPolicy policy)
{
    OGRFieldDomain::FromHandle(hFieldDomain)->SetSplitPolicy(policy);
}

/************************************************************************/
/*                    OGR_FldDomain_GetMergePolicy()                    */
/************************************************************************/

/** Get the split policy of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::GetMergePolicy()
 *
 * @param hFieldDomain Field domain handle.
 * @return the split policy of the field domain.
 * @since GDAL 3.3
 */

OGRFieldDomainMergePolicy
OGR_FldDomain_GetMergePolicy(OGRFieldDomainH hFieldDomain)
{
    return OGRFieldDomain::FromHandle(hFieldDomain)->GetMergePolicy();
}

/************************************************************************/
/*                    OGR_FldDomain_SetMergePolicy()                    */
/************************************************************************/

/** Set the split policy of the field domain.
 *
 * This is the same as the C++ method OGRFieldDomain::SetMergePolicy()
 *
 * @param hFieldDomain Field domain handle.
 * @param policy the split policy of the field domain.
 * @since GDAL 3.3
 */

void OGR_FldDomain_SetMergePolicy(OGRFieldDomainH hFieldDomain,
                                  OGRFieldDomainMergePolicy policy)
{
    OGRFieldDomain::FromHandle(hFieldDomain)->SetMergePolicy(policy);
}

/************************************************************************/
/*                  OGR_CodedFldDomain_GetEnumeration()                 */
/************************************************************************/

/** Get the enumeration as (code, value) pairs.
 *
 * The end of the enumeration is signaled by code == NULL
 *
 * This is the same as the C++ method OGRCodedFieldDomain::GetEnumeration()
 *
 * @param hFieldDomain Field domain handle.
 * @return the (code, value) pairs, or nullptr in case of error.
 * @since GDAL 3.3
 */
const OGRCodedValue *
OGR_CodedFldDomain_GetEnumeration(OGRFieldDomainH hFieldDomain)
{
    // The user should normally only call us with the right object type, but
    // it doesn't hurt to check.
    auto poFieldDomain = dynamic_cast<const OGRCodedFieldDomain *>(
        OGRFieldDomain::FromHandle(hFieldDomain));
    if (!poFieldDomain)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "This function should be called with a coded field domain object");
        return nullptr;
    }
    return poFieldDomain->GetEnumeration();
}

/************************************************************************/
/*                     OGR_RangeFldDomain_GetMin()                      */
/************************************************************************/

/** Get the minimum value.
 *
 * Which member in the returned OGRField enum must be read depends on the field
 * type.
 *
 * If no minimum value is set, the OGR_RawField_IsUnset() will return true when
 * called on the result.
 *
 * This is the same as the C++ method OGRRangeFieldDomain::GetMin()
 *
 * @param hFieldDomain Field domain handle.
 * @param pbIsInclusiveOut set to true if the minimum is included in the range.
 * @return the minimum value.
 * @since GDAL 3.3
 */
const OGRField *OGR_RangeFldDomain_GetMin(OGRFieldDomainH hFieldDomain,
                                          bool *pbIsInclusiveOut)
{
    // The user should normally only call us with the right object type, but
    // it doesn't hurt to check.
    auto poFieldDomain = dynamic_cast<const OGRRangeFieldDomain *>(
        OGRFieldDomain::FromHandle(hFieldDomain));
    if (!poFieldDomain)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "This function should be called with a range field domain object");
        static const OGRField dummyField = GetUnsetField();
        return &dummyField;
    }
    bool bIsInclusive = false;
    const auto &ret = poFieldDomain->GetMin(bIsInclusive);
    if (pbIsInclusiveOut)
        *pbIsInclusiveOut = bIsInclusive;
    return &ret;
}

/************************************************************************/
/*                     OGR_RangeFldDomain_GetMax()                      */
/************************************************************************/

/** Get the maximum value.
 *
 * Which member in the returned OGRField enum must be read depends on the field
 * type.
 *
 * If no maximum value is set, the OGR_RawField_IsUnset() will return true when
 * called on the result.
 *
 * This is the same as the C++ method OGRRangeFieldDomain::GetMax()
 *
 * @param hFieldDomain Field domain handle.
 * @param pbIsInclusiveOut set to true if the maximum is included in the range.
 * @return the maximum value.
 * @since GDAL 3.3
 */
const OGRField *OGR_RangeFldDomain_GetMax(OGRFieldDomainH hFieldDomain,
                                          bool *pbIsInclusiveOut)
{
    // The user should normally only call us with the right object type, but
    // it doesn't hurt to check.
    auto poFieldDomain = dynamic_cast<const OGRRangeFieldDomain *>(
        OGRFieldDomain::FromHandle(hFieldDomain));
    if (!poFieldDomain)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "This function should be called with a range field domain object");
        static const OGRField dummyField = GetUnsetField();
        return &dummyField;
    }
    bool bIsInclusive = false;
    const auto &ret = poFieldDomain->GetMax(bIsInclusive);
    if (pbIsInclusiveOut)
        *pbIsInclusiveOut = bIsInclusive;
    return &ret;
}

/************************************************************************/
/*                     OGR_GlobFldDomain_GetGlob()                      */
/************************************************************************/

/** Get the glob expression.
 *
 * This is the same as the C++ method OGRGlobFieldDomain::GetGlob()
 *
 * @param hFieldDomain Field domain handle.
 * @return the glob expression, or nullptr in case of error
 * @since GDAL 3.3
 */
const char *OGR_GlobFldDomain_GetGlob(OGRFieldDomainH hFieldDomain)
{
    // The user should normally only call us with the right object type, but
    // it doesn't hurt to check.
    auto poFieldDomain = dynamic_cast<const OGRGlobFieldDomain *>(
        OGRFieldDomain::FromHandle(hFieldDomain));
    if (!poFieldDomain)
    {
        CPLError(
            CE_Failure, CPLE_AppDefined,
            "This function should be called with a glob field domain object");
        return nullptr;
    }
    return poFieldDomain->GetGlob().c_str();
}