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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [ctype/] [ispunct.c] - Rev 148
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/* FUNCTION <<ispunct>>---punctuation character predicate INDEX ispunct ANSI_SYNOPSIS #include <ctype.h> int ispunct(int <[c]>); TRAD_SYNOPSIS #include <ctype.h> int ispunct(<[c]>); DESCRIPTION <<ispunct>> is a macro which classifies ASCII integer values by table lookup. It is a predicate returning non-zero for printable punctuation characters, and 0 for other characters. It is defined only when <<isascii>>(<[c]>) is true or <[c]> is EOF. You can use a compiled subroutine instead of the macro definition by undefining the macro using `<<#undef ispunct>>'. RETURNS <<ispunct>> returns non-zero if <[c]> is a printable punctuation character (<<isgraph(<[c]>) && !isalnum(<[c]>)>>). PORTABILITY <<ispunct>> is ANSI C. No supporting OS subroutines are required. */ #include <_ansi.h> #include <ctype.h> #undef ispunct int _DEFUN(ispunct,(c),int c) { return(__ctype_ptr__[c+1] & _P); }
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