1ISASCII(3P)                POSIX Programmer's Manual               ISASCII(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       isascii - test for a 7-bit US-ASCII character
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SYNOPSIS

15       #include <ctype.h>
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17       int isascii(int c);
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DESCRIPTION

21       The isascii() function shall test whether c is a 7-bit US-ASCII charac‐
22       ter code.
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24       The isascii() function is defined on all integer values.
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RETURN VALUE

27       The  isascii()  function shall return non-zero if c is a 7-bit US-ASCII
28       character code between 0 and octal 0177 inclusive; otherwise, it  shall
29       return 0.
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ERRORS

32       No errors are defined.
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34       The following sections are informative.
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EXAMPLES

37       None.
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APPLICATION USAGE

40       None.
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RATIONALE

43       None.
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FUTURE DIRECTIONS

46       None.
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SEE ALSO

49       The Base Definitions volume of IEEE Std 1003.1-2001, <ctype.h>
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52       Portions  of  this text are reprinted and reproduced in electronic form
53       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
54       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
55       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
56       Electrical  and  Electronics  Engineers, Inc and The Open Group. In the
57       event of any discrepancy between this version and the original IEEE and
58       The  Open Group Standard, the original IEEE and The Open Group Standard
59       is the referee document. The original Standard can be  obtained  online
60       at http://www.opengroup.org/unix/online.html .
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64IEEE/The Open Group                  2003                          ISASCII(3P)
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