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#include <stdio.h>
#include <limits.h>
#include <stdio.h>
#include "_ctype.h"
/** convert a lowercase letter to uppercase **/
int toupper(int c)
{
unsigned char *map = __get_locale()->lc_ctype.ctoupper;
ASSERT_REPRESENTABLE(c, 0, UCHAR_MAX, unsigned char, EOF);
if (c == EOF) {
return EOF;
}
return map[c];
}
/***
converts a lowercase letter to its equivalent uppercase letter in the current
locale.
***/
/*
RETURN_SUCCESS(ARGUMENT(c) converted to uppercase)
RETURN_FAILURE(ARGUMENT(c), ARGUMENT(c) was not a lowercase letter or it has no equivalent upercase letter)
LC_CTYPE
STDC(1)
*/
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