#ifndef _PDCLIB_CTYPE_H
#define _PDCLIB_CTYPE_H _PDCLIB_CTYPE_H
+#ifndef _PDCLIB_INT_H
+#define _PDCLIB_INT_H _PDCLIB_INT_H
+#include <_PDCLIB_int.h>
+#endif
+
/* Character classification functions */
/* Note that there is a difference between "whitespace" (any printing, non-
*/
int isalpha( int c );
-/* Returns true if the character is a whitespace. In the "C" locale, only ' '
- and '\t' are considered whitespace.
+/* Returns true if the character isspace() and used for seperating words within
+ a line of text. In the "C" locale, only ' ' and '\t' are considered blanks.
*/
int isblank( int c );
/* Returns true if the character is a control character. */
int iscntrl( int c );
-/* Returns true if the character is a decimal digit. */
+/* Returns true if the character is a decimal digit. Locale-independent. */
int isdigit( int c );
/* Returns true for every printing character except space (' '). */
*/
int isupper( int c );
-/* Returns true for any hexadecimal-digit character. */
+/* Returns true for any hexadecimal-digit character. Locale-independent. */
int isxdigit( int c );
/* Character case mapping functions */