Mercurial > gnulib
view lib/mbtowc-impl.h @ 40161:71ec1d2c1db9
gperf: Fix error when this module is required by some test module.
* modules/gperf (Applicability): Set to 'all'.
author | Bruno Haible <bruno@clisp.org> |
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date | Sun, 27 Jan 2019 23:57:16 +0100 |
parents | b06060465f09 |
children |
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/* Convert multibyte character to wide character. Copyright (C) 2011-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2011. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* We don't need a static internal state, because the encoding is not state dependent, and when mbrtowc returns (size_t)(-2). we throw the result away. */ int mbtowc (wchar_t *pwc, const char *s, size_t n) { if (s == NULL) return 0; else { mbstate_t state; wchar_t wc; size_t result; memset (&state, 0, sizeof (mbstate_t)); result = mbrtowc (&wc, s, n, &state); if (result == (size_t)-1 || result == (size_t)-2) { errno = EILSEQ; return -1; } if (pwc != NULL) *pwc = wc; return (wc == 0 ? 0 : result); } }