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#include <ctype.h>
#include "limits.h"
#include "../_assert.h"
#include "_ctype.h"
/** test whether a character is white-space **/
int isspace(int c)
{
unsigned int *map = __libc(CTYPE);
ASSERT_REPRESENTABLE(c, 0, UCHAR_MAX, unsigned char, EOF);
return map[c] & CT_SPACE;
}
/***
tests whether ARGUMENT(c) is a character in the class CHARACTER_CLASS(space)
in the current locale.
***/
/*
RETURN(NONZERO, ARGUMENT(c) is a white-space character)
RETURN(0, ARGUMENT(c) is not a white-space character)
LC_CTYPE
C_LOCALE(`THIS() is true for the standard white-space characters: SPACE, form feed (CHAR(\f)), new-line (CHAR(\n)), carriage return (CHAR(\r)), horizontal tab (CHAR(\t)), and vertical tab (CHAR(\v))')
OTHER_LOCALES(`THIS() is true for the standard white-space characters and a set of characters for which FUNCTION(isalnum) is false')
STDC(1)
*/
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