isascii(3p) - phpMan

ISASCII(P)                                                          ISASCII(P)



NAME
       isascii - test for a 7-bit US-ASCII character

SYNOPSIS
       #include <ctype.h>

       int isascii(int c);


DESCRIPTION
       The isascii() function shall test whether c is a 7-bit US-ASCII character code.

       The isascii() function is defined on all integer values.

RETURN VALUE
       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.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       The Base Definitions volume of IEEE Std 1003.1-2001, <ctype.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- 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 .



POSIX                                2003                           ISASCII(P)

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