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/* ==========================================================================
* strdupa.h - Re-implementation of glibc strdupa.
* --------------------------------------------------------------------------
* Copyright (c) 2009 William Ahern
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
* NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
* ==========================================================================
*/
#ifdef __cplusplus
extern "C"
{
#endif
#ifndef LITE_STRDUPA_H
#define LITE_STRDUPA_H
#if !defined(HAVE_STRDUPA)
#if defined(strdupa)
#define HAVE_STRDUPA 1
#endif
#endif
#if !HAVE_STRDUPA
#if defined(__GNUC__)
#include <stddef.h> /* size_t */
#include <string.h> /* memcpy(3) strlen(3) */
#define strdupa(src) (__extension__ ({ \
size_t len_ = strlen(src); \
char *dst_ = __builtin_alloca(len_ + 1); \
dst_[len_] = '\0'; \
(char *)memcpy(dst_, src, len_); \
}))
#else /* If not GCC, e.g. Clang */
#error strdupa() may use an unsupported GNU C API, please forward any fix to maintainer, cheers!
#endif /* __GNUC__ */
#endif /* !HAVE_STRDUPA */
#endif /* LITE_STRDUPA_H */
#ifdef __cplusplus
}
#endif
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