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/*
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FUNCTION
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	<>---ASCII character predicate
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INDEX
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	isascii
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ANSI_SYNOPSIS
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	#include
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	int isascii(int <[c]>);
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TRAD_SYNOPSIS
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	#include
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	int isascii(<[c]>);
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DESCRIPTION
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<> is a macro which returns non-zero when <[c]> is an ASCII
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character, and 0 otherwise.  It is defined for all integer values.
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You can use a compiled subroutine instead of the macro definition by
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undefining the macro using `<<#undef isascii>>'.
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RETURNS
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<> returns non-zero if the low order byte of <[c]> is in the range
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PORTABILITY
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<> is ANSI C.
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No supporting OS subroutines are required.
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*/
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#include <_ansi.h>
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#include
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#undef isascii
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int
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_DEFUN(isascii,(c),int c)
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{
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	return c >= 0 && c< 128;
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}