39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
/*******************************************************************************
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Copyright(C) Jonas 'Sortie' Termansen 2013.
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This file is part of the Sortix C Library.
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The Sortix C Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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The Sortix C Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the Sortix C Library. If not, see <http://www.gnu.org/licenses/>.
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mbstowcs.cpp
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Convert a multibyte string to a wide-character string.
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*******************************************************************************/
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#include <stdlib.h>
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#include <wchar.h>
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extern "C" size_t mbstowcs(wchar_t* dst, const char* src, size_t n)
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{
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// Reset the secret conversion state variable in mbsrtowcs that is used when
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// ps is NULL by successfully converting the empty string. As always, this
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// is not multithread secure. For some reason, the standards don't mandate
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// that the conversion state is reset when mbsrtowcs is called with ps=NULL,
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// which arguably is a feature - but this function is supposed to do it.
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const char* empty_string = "";
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mbsrtowcs(NULL, &empty_string, 0, NULL);
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return mbsrtowcs(dst, &src, n, NULL);
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}
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