ISASCII(3) BSD Library Functions Manual ISASCII(3)NAME
isascii -- test for ASCII character
Standard C Library (libc, -lc)
The isascii() function tests for an ASCII character, which is any character between 0 and octal 0177 inclusive.
SEE ALSO ctype(3), iswascii(3), ascii(7)BSD October 6, 2002 BSD
Check Out this Related Man Page
ISASCII(3P) POSIX Programmer's Manual ISASCII(3P)PROLOG
This manual page is part of the POSIX Programmer's Manual. The Linux implementation of this interface may differ (consult the correspond-
ing Linux manual page for details of Linux behavior), or the interface may not be implemented on Linux.
isascii - test for a 7-bit US-ASCII character
int isascii(int c);
The isascii() function shall test whether c is a 7-bit US-ASCII character code.
The isascii() function is defined on all integer values.
The isascii() function shall return non-zero if c is a 7-bit US-ASCII character code between 0 and octal 0177 inclusive; otherwise, it
shall return 0.
No errors are defined.
The following sections are informative.
The Base Definitions volume of IEEE Std 1003.1-2001, <ctype.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
Electrical and Electronics Engineers, Inc and The Open Group. In the event of any discrepancy between this version and the original IEEE
and The Open Group Standard, the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE /The Open Group 2003 ISASCII(3P)