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/*
Copyright (c) 2016 Corinna Vinschen <corinna@vinschen.de>
Modified (m) 2017 Thomas Wolff: revise Unicode and locale/wchar handling
*/
#define _DEFAULT_SOURCE
#include <_ansi.h>
#include <ctype.h>
#if defined (_MB_EXTENDED_CHARSETS_ISO) \
|| defined (_MB_EXTENDED_CHARSETS_WINDOWS)
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <wctype.h>
#include <wchar.h>
#include <../locale/setlocale.h>
#endif
int
toupper_l (int c, struct __locale_t *locale)
{
#if defined (_MB_EXTENDED_CHARSETS_ISO) \
|| defined (_MB_EXTENDED_CHARSETS_WINDOWS)
if ((unsigned char) c <= 0x7f)
return islower_l (c, locale) ? c - 'a' + 'A' : c;
else if (c != EOF && __locale_mb_cur_max_l (locale) == 1
&& islower_l (c, locale))
{
char s[MB_LEN_MAX] = { c, '\0' };
wchar_t wc;
mbstate_t state;
memset (&state, 0, sizeof state);
if (locale->mbtowc (_REENT, &wc, s, 1, &state) >= 0
&& locale->wctomb (_REENT, s,
(wchar_t) towupper_l ((wint_t) wc, locale),
&state) == 1)
c = (unsigned char) s[0];
}
return c;
#else
return islower_l (c, locale) ? c - 'a' + 'A' : c;
#endif
}
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