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ISASCII(3)                 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() function 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.

NetBSD 10.99                   February 21, 2021                  NetBSD 10.99