CTYPE(3) AerieBSD 1.0 Refernce Manual CTYPE(3)

NAME

ctype — character classification macros

SYNOPSIS

#include <ctype.h>

int isalpha(int c);

int isupper(int c);

int islower(int c);

int isdigit(int c);

int isxdigit(int c);

int isalnum(int c);

int isspace(int c);

int ispunct(int c);

int isprint(int c);

int isgraph(int c);

int iscntrl(int c);

int isblank(int c);

int isascii(int c);

int toupper(int c);

int tolower(int c);

int toascii(int c);

DESCRIPTION

The above macros perform character tests and conversions on the integer c.

See each function's own manual page for more information.

SEE ALSO

isalnum(3), isalpha(3), isascii(3), isblank(3), iscntrl(3), isdigit(3), isgraph(3), islower(3), isprint(3), ispunct(3), isspace(3), isupper(3), isxdigit(3), stdio(3), toascii(3), tolower(3), toupper(3), ascii(7)

STANDARDS

These functions, with the exception of isblank(); and toascii();, conform to

AerieBSD 1.0 Reference Manual August 26 2008 CTYPE(3)