netbsd man page for isascii

ISASCII(3)						   BSD Library Functions Manual 						ISASCII(3)

NAME
     isascii -- test for ASCII character

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <ctype.h>

     int
     isascii(int c);

DESCRIPTION
     The isascii() function tests for an ASCII character, which is any character with a value in the range from 0 to 127, inclusive.

     The isascii() is defined on all integer values.

SEE ALSO
     ctype(3), isalnum(3), isalpha(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
     The isascii() function conforms to X/Open Portability Guide Issue 4 (``XPG4'') and IEEE Std 1003.1-2001 (``POSIX.1'').  The IEEE Std
     1003.1-2008 (``POSIX.1'') revision however marked it as obsolete, noting that isascii() cannot be used portably in a localized application.

BSD
								  April 30, 2010							       BSD