ctype(3) - NetBSD Manual Pages

CTYPE(3)                NetBSD Library Functions Manual               CTYPE(3)


NAME

     isalpha, isupper, islower, isdigit, isxdigit, isalnum, isspace, ispunct,
     isprint, isgraph, iscntrl, isblank, isascii, toupper, tolower, toascii --
     character classification macros


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <ctype.h>
     int c

     isalpha(c);

     isupper(c);

     islower(c);

     isdigit(c);

     isxdigit(c);

     isalnum(c);

     isspace(c);

     ispunct(c);

     isprint(c);

     isgraph(c);

     iscntrl(c);

     isblank(c);

     isascii(c);

     toupper(c);

     tolower(c);

     toascii(c);


DESCRIPTION

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

     See the specific manual pages 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), toascii(3), tolower(3), toupper(3), ascii(7)


STANDARDS

     These functions, with the exception of isblank() and toascii(), conform
     to ANSI X3.159-1989 (``ANSI C89'').

NetBSD 3.0                      April 19, 1991                      NetBSD 3.0