isascii(3) - NetBSD Manual Pages

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ISASCII(3)              NetBSD 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 charac-
     ter 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