37 lines
978 B
C
37 lines
978 B
C
#include <_ansi.h>
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#include <ctype.h>
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#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wctype.h>
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#include <wchar.h>
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#include "../locale/setlocale.h"
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#endif
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int
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tolower_l (int c, struct __locale_t *locale)
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{
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#if defined (_MB_EXTENDED_CHARSETS_ISO) || defined (_MB_EXTENDED_CHARSETS_WINDOWS)
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if ((unsigned char) c <= 0x7f)
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return isupper_l (c, locale) ? c - 'A' + 'a' : c;
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else if (c != EOF && __locale_mb_cur_max_l (locale) == 1
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&& isupper_l (c, locale))
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{
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char s[MB_LEN_MAX] = { c, '\0' };
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wchar_t wc;
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mbstate_t state;
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memset (&state, 0, sizeof state);
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if (locale->mbtowc (_REENT, &wc, s, 1, &state) >= 0
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&& locale->wctomb (_REENT, s,
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(wchar_t) towlower_l ((wint_t) wc, locale),
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&state) == 1)
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c = (unsigned char) s[0];
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}
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return c;
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#else
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return isupper_l (c, locale) ? (c) - 'A' + 'a' : c;
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#endif
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}
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