coding guidelines 10.4: casting operands to have same types

File zephyr/lib/os/cbprintf_nano.c had operands with different types.
It caused Rule 10.4 violation.
Both operands of an operator in which the usual arithmetic conversions
are performed shall have the same essential type category.

Signed-off-by: Maksim Masalski <[email protected]>

coding guidelines 10.4: casting operands to have same types

File zephyr/lib/os/cbprintf_nano.c had operands with different types.
It caused Rule 10.4 violation.
Both operands of an operator in which the usual arithmetic conversions
are performed shall have the same essential type category.

Signed-off-by: Maksim Masalski <[email protected]>

removed cast to int

lib/os/cbprintf_nano.c

@@ -77,7 +77,7 @@ int cbvprintf(cbprintf_cb out, void *ctx, const char *fmt, va_list ap)
 
 start:
 	while (*++fmt != '%') {
-		if (*fmt == 0) {
+		if (*fmt == '\0') {
 			return count;
 		}
 		OUTC(*fmt);
@@ -105,7 +105,7 @@ int cbvprintf(cbprintf_cb out, void *ctx, const char *fmt, va_list ap)
 
 		case '.':
 			precision = 0;
-			padding_mode &= ~PAD_ZERO;
+			padding_mode &= (char)~PAD_ZERO;
 			continue;
 
 		case '0':
@@ -159,7 +159,7 @@ int cbvprintf(cbprintf_cb out, void *ctx, const char *fmt, va_list ap)
 				length_mod = 'H';
 			} else if (*fmt == 'l' && length_mod == 'l') {
 				length_mod = 'L';
-			} else if (length_mod == 0) {
+			} else if (length_mod == '\0') {
 				length_mod = *fmt;
 			} else {
 				OUTC('%');
@@ -219,7 +219,7 @@ int cbvprintf(cbprintf_cb out, void *ctx, const char *fmt, va_list ap)
 
 			if (*fmt == 'p') {
 				x = (uintptr_t)va_arg(ap, void *);
-				if (x == 0) {
+				if (x == (uint_value_type)0) {
 					data = "(nil)";
 					data_len = 5;
 					precision = 0;