Initial commit to c-primer-plus-book-6ed.

Ch01/inform.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+int main(void)
+{
+    printf("A .c is used to end a C program filename.\n");
+
+    return 0;
+}

Ch01/listing1.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+int main(void)
+{
+    int dogs;
+
+    printf("How many dogs do you have?\n");
+    scanf("%d", &dogs);
+    printf("So you have %d dog(s)!\n", dogs);
+
+    return 0;
+}

Ch01/listing2.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+int main(void)
+{
+    printf("Concrete contains gravel and cement.\n");
+
+    return 0;
+}

Ch02/fathm_ft.c

@@ -0,0 +1,14 @@
+// fathm_ft.c -- converts 2 fathoms to feet
+
+#include <stdio.h>
+int main(void)
+{
+    int feet, fathoms;
+
+    fathoms = 2;
+    feet = 6 * fathoms;
+    printf("There are %d feet in %d fathoms!\n", feet, fathoms);
+    printf("Yes, I said %d feet!\n", 6 * fathoms);
+
+    return 0;
+}

Ch02/first.c

@@ -0,0 +1,13 @@
+// first.c
+#include <stdio.h>
+int main(void)                /* a simple program             */
+{
+    int num;                  /* define a variable called num */
+    num = 1;                  /* assign a value to num        */
+
+    printf("I am a simple "); /* use the printf() function    */
+    printf("computer.\n");
+    printf("My favorite number is %d because it is first.\n",num);
+
+    return 0;
+}

Ch02/nogood.c

@@ -0,0 +1,14 @@
+/*  nogood.c -- a program with errors */
+#include <stdio.h>
+int main(void)
+(
+ int n, int n2, int n3;
+
+/* this program has several errors
+ n = 5;
+ n2 = n * n;
+ n3 = n2 * n2;
+ printf("n = %d, n squared = %d, n cubed = %d\n", n, n2, n3)
+
+ return 0;
+ )

Ch02/stillbad.c

@@ -0,0 +1,14 @@
+/* stillbad.c -- a program with its syntax errors fixed */
+#include <stdio.h>
+int main(void)
+{
+    int n, n2, n3;
+
+    /* this program has a semantic error */
+    n = 5;
+    n2 = n * n;
+    n3 = n2 * n2;
+    printf("n = %d, n squared = %d, n cubed = %d\n", n, n2, n3);
+
+    return 0;
+}

Ch02/two_func.c

@@ -0,0 +1,16 @@
+//* two_func.c -- a program using two functions in one file */
+#include <stdio.h>
+void butler(void);      /* ANSI/ISO C function prototyping */
+int main(void)
+{
+    printf("I will summon the butler function.\n");
+    butler();
+    printf("Yes. Bring me some tea and writeable DVDs.\n");
+
+    return 0;
+}
+
+void butler(void)       /* start of function definition */
+{
+    printf("You rang, sir?\n");
+}

Ch03/altnames.c

@@ -0,0 +1,16 @@
+/* altnames.c -- portable names for integer types */
+#include <stdio.h>
+#include <inttypes.h> // supports portable types
+int main(void)
+{
+    int32_t me32;     // me32 a 32-bit signed variable
+
+    me32 = 45933945;
+    printf("First, assume int32_t is int: ");
+    printf("me32 = %d\n", me32);
+    printf("Next, let's not make any assumptions.\n");
+    printf("Instead, use a \"macro\" from inttypes.h: ");
+    printf("me32 = %" PRId32 "\n", me32);
+
+    return 0;
+}

Ch03/badcount.c

@@ -0,0 +1,15 @@
+/* badcount.c -- incorrect argument counts */
+#include <stdio.h>
+int main(void)
+{
+    int n = 4;
+    int m = 5;
+    float f = 7.0f;
+    float g = 8.0f;
+
+    printf("%d\n", n, m);    /* too many arguments   */
+    printf("%d %d %d\n", n); /* too few arguments    */
+    printf("%d %d\n", f, g); /* wrong kind of values */
+
+    return 0;
+}

Ch03/bases.c

@@ -0,0 +1,11 @@
+/* bases.c--prints 100 in decimal, octal, and hex */
+#include <stdio.h>
+int main(void)
+{
+    int x = 100;
+
+    printf("dec = %d; octal = %o; hex = %x\n", x, x, x);
+    printf("dec = %d; octal = %#o; hex = %#x\n", x, x, x);
+
+    return 0;
+}

Ch03/charcode.c

@@ -0,0 +1,12 @@
+/* charcode.c-displays code number for a character */
+#include <stdio.h>
+int main(void)
+{
+    char ch;
+
+    printf("Please enter a character.\n");
+    scanf("%c", &ch);   /* user inputs character */
+    printf("The code for %c is %d.\n", ch, ch);
+
+    return 0;
+}

Ch03/escape.c

@@ -0,0 +1,15 @@
+/* escape.c -- uses escape characters */
+#include <stdio.h>
+int main(void)
+{
+    float salary;
+
+    printf("\aEnter your desired monthly salary:");/* 1 */
+    printf(" $_______\b\b\b\b\b\b\b");             /* 2 */
+    scanf("%f", &salary);
+    printf("\n\t$%.2f a month is $%.2f a year.", salary,
+           salary * 12.0);                         /* 3 */
+    printf("\rGee!\n");                            /* 4 */
+
+    return 0;
+}

Ch03/floaterr.c

@@ -0,0 +1,12 @@
+/* floaterr.c--demonstrates round-off error */
+#include <stdio.h>
+int main(void)
+{
+    float a,b;
+
+    b = 2.0e20 + 1.0;
+    a = b - 2.0e20;
+    printf("%f \n", a);
+
+    return 0;
+}

Ch03/platinum.c

@@ -0,0 +1,22 @@
+/* platinum.c  -- your weight in platinum */
+#include <stdio.h>
+int main(void)
+{
+    float weight;    /* user weight             */
+    float value;     /* platinum equivalent     */
+
+    printf("Are you worth your weight in platinum?\n");
+    printf("Let's check it out.\n");
+    printf("Please enter your weight in pounds: ");
+
+    /* get input from the user                     */
+    scanf("%f", &weight);
+    /* assume platinum is $1700 per ounce          */
+    /* 14.5833 converts pounds avd. to ounces troy */
+    value = 1700.0 * weight * 14.5833;
+    printf("Your weight in platinum is worth $%.2f.\n", value);
+    printf("You are easily worth that! If platinum prices drop,\n");
+    printf("eat more to maintain your value.\n");
+
+    return 0;
+}

Ch03/print1.c

@@ -0,0 +1,14 @@
+/* print1.c-displays some properties of printf() */
+#include <stdio.h>
+int main(void)
+{
+    int ten = 10;
+    int two = 2;
+
+    printf("Doing it right: ");
+    printf("%d minus %d is %d\n", ten, 2, ten - two );
+    printf("Doing it wrong: ");
+    printf("%d minus %d is %d\n", ten );  // forgot 2 arguments
+
+    return 0;
+}

Ch03/print2.c

@@ -0,0 +1,16 @@
+/* print2.c-more printf() properties */
+#include <stdio.h>
+int main(void)
+{
+    unsigned int un = 3000000000; /* system with 32-bit int */
+    short end = 200;              /* and 16-bit short       */
+    long big = 65537;
+    long long verybig = 12345678908642;
+
+    printf("un = %u and not %d\n", un, un);
+    printf("end = %hd and %d\n", end, end);
+    printf("big = %ld and not %hd\n", big, big);
+    printf("verybig= %lld and not %ld\n", verybig, verybig);
+
+    return 0;
+}

Ch03/showf_pt.c

@@ -0,0 +1,16 @@
+/* showf_pt.c -- displays float value in two ways */
+#include <stdio.h>
+int main(void)
+{
+    float aboat = 32000.0;
+    double abet = 2.14e9;
+    long double dip = 5.32e-5;
+
+    printf("%f can be written %e\n", aboat, aboat);
+    // next line requires C99 or later compliance
+    printf("And it's %a in hexadecimal, powers of 2 notation\n", aboat);
+    printf("%f can be written %e\n", abet, abet);
+    printf("%Lf can be written %Le\n", dip, dip);
+
+    return 0;
+}

Ch03/toobig.c

@@ -0,0 +1,12 @@
+/* toobig.c-exceeds maximum int size on our system */
+#include <stdio.h>
+int main(void)
+{
+    int i = 2147483647;
+    unsigned int j = 4294967295;
+
+    printf("%d %d %d\n", i, i+1, i+2);
+    printf("%u %u %u\n", j, j+1, j+2);
+
+    return 0;
+}

Ch03/typesize.c

@@ -0,0 +1,16 @@
+//* typesize.c -- prints out type sizes */
+#include <stdio.h>
+int main(void)
+{
+    /* c99 provides a %zd specifier for sizes */
+    printf("Type int has a size of %zd bytes.\n", sizeof(int));
+    printf("Type char has a size of %zd bytes.\n", sizeof(char));
+    printf("Type long has a size of %zd bytes.\n", sizeof(long));
+    printf("Type long long has a size of %zd bytes.\n",
+           sizeof(long long));
+    printf("Type double has a size of %zd bytes.\n",
+           sizeof(double));
+    printf("Type long double has a size of %zd bytes.\n",
+           sizeof(long double));
+    return 0;
+}

Ch04/defines.c

@@ -0,0 +1,17 @@
+// defines.c -- uses defined constants from limit.h and float.
+#include <stdio.h>
+#include <limits.h>    // integer limits
+#include <float.h>     // floating-point limits
+int main(void)
+{
+    printf("Some number limits for this system:\n");
+    printf("Biggest int: %d\n", INT_MAX);
+    printf("Smallest long long: %lld\n", LLONG_MIN);
+    printf("One byte = %d bits on this system.\n", CHAR_BIT);
+    printf("Largest double: %e\n", DBL_MAX);
+    printf("Smallest normal float: %e\n", FLT_MIN);
+    printf("float precision = %d digits\n", FLT_DIG);
+    printf("float epsilon = %e\n", FLT_EPSILON);
+
+    return 0;
+}

Ch04/flags.c

@@ -0,0 +1,10 @@
+/* flags.c -- illustrates some formatting flags */
+#include <stdio.h>
+int main(void)
+{
+    printf("%x %X %#x\n", 31, 31, 31);
+    printf("**%d**% d**% d**\n", 42, 42, -42);
+    printf("**%5d**%5.3d**%05d**%05.3d**\n", 6, 6, 6, 6);
+
+    return 0;
+}

Ch04/floatcnv.c

@@ -0,0 +1,15 @@
+/* floatcnv.c -- mismatched floating-point conversions */
+#include <stdio.h>
+int main(void)
+{
+    float n1 = 3.0;
+    double n2 = 3.0;
+    long n3 = 2000000000;
+    long n4 = 1234567890;
+
+    printf("%.1e %.1e %.1e %.1e\n", n1, n2, n3, n4);
+    printf("%ld %ld\n", n3, n4);
+    printf("%ld %ld %ld %ld\n", n1, n2, n3, n4);
+
+    return 0;
+}

Ch04/floats.c

@@ -0,0 +1,18 @@
+// floats.c -- some floating-point combinations
+#include <stdio.h>
+
+int main(void)
+{
+    const double RENT = 3852.99;  // const-style constant
+
+    printf("*%f*\n", RENT);
+    printf("*%e*\n", RENT);
+    printf("*%4.2f*\n", RENT);
+    printf("*%3.1f*\n", RENT);
+    printf("*%10.3f*\n", RENT);
+    printf("*%10.3E*\n", RENT);
+    printf("*%+4.2f*\n", RENT);
+    printf("*%010.2f*\n", RENT);
+
+    return 0;
+}

Ch04/input.c

@@ -0,0 +1,15 @@
+// input.c -- when to use &
+#include <stdio.h>
+int main(void)
+{
+    int age;             // variable
+    float assets;        // variable
+    char pet[30];        // string
+
+    printf("Enter your age, assets, and favorite pet.\n");
+    scanf("%d %f", &age, &assets); // use the & here
+    scanf("%s", pet);              // no & for char array
+    printf("%d $%.2f %s\n", age, assets, pet);
+
+    return 0;
+}

Ch04/intconv.c

@@ -0,0 +1,18 @@
+/* intconv.c -- some mismatched integer conversions */
+#include <stdio.h>
+#define PAGES 336
+#define WORDS 65618
+int main(void)
+{
+    short num = PAGES;
+    short mnum = -PAGES;
+
+    printf("num as short and unsigned short:  %hd %hu\n", num,
+           num);
+    printf("-num as short and unsigned short: %hd %hu\n", mnum,
+           mnum);
+    printf("num as int and char: %d %c\n", num, num);
+    printf("WORDS as int, short, and char: %d %hd %c\n",
+           WORDS, WORDS, WORDS);
+    return 0;
+}