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49 lines
967 B
C
49 lines
967 B
C
/*
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FUNCTION
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<<iswalnum>>, <<iswalnum_l>>---alphanumeric wide character test
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INDEX
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iswalnum
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INDEX
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iswalnum_l
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ANSI_SYNOPSIS
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#include <wctype.h>
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int iswalnum(wint_t <[c]>);
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#include <wctype.h>
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int iswalnum_l(wint_t <[c]>, locale_t <[locale]>);
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TRAD_SYNOPSIS
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#include <wctype.h>
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int iswalnum(<[c]>)
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wint_t <[c]>;
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DESCRIPTION
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<<iswalnum>> is a function which classifies wide-character values that
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are alphanumeric.
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<<iswalnum_l>> is like <<iswalnum>> but performs the check based on the
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locale specified by the locale object locale. If <[locale]> is
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LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
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RETURNS
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<<iswalnum>>, <<iswalnum_l>> return non-zero if <[c]> is a alphanumeric
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wide character.
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PORTABILITY
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<<iswalnum>> is C99.
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<<iswalnum_l>> is POSIX-1.2008.
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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 <wctype.h>
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int
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_DEFUN(iswalnum,(c),wint_t c)
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{
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return (iswalpha (c) || iswdigit (c));
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}
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