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/* ctype.h - character classification functions */
/* character is alphanumeric
* returns 0 if the character doesn't fit the
* classification; non-zero (but not necessarily 1)
* if it does.
*/
inline int isalnum(int c /* the character to classify */);
/* character is a letter */
inline int isalpha(int c);
/* character is a control character */
inline int iscntrl(int c);
/* character is a digit */
inline int isdigit(int c);
/* character is a graphic */
inline int isgraph(int c);
/* character is a lower case letter */
inline int islower(int c);
/* character is printable */
inline int isprint(int c);
/* character is punctuation */
inline int ispunct(int c);
/* character is a a form of whitespace */
inline int isspace(int c);
/* character is an upper case letter */
inline int isupper(int c);
/* character is a hexadecimal digit */
inline int isxdigit(int c);
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