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 3.0.1 April 19, 1991 NetBSD 3.0.1

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