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/*
Common macro and helpers.
Copyright (C) 2017 Andrea Stacchiotti <andreastacchiotti(a)gmail.com>
This file is part of libscanmem.
This library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This library 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef COMMON_H
#define COMMON_H
#ifndef MIN
# define MIN(a,b) ((a) < (b) ? (a) : (b))
#endif
/* from string.h in glibc for Android/BSD */
#ifndef strdupa
# include <alloca.h>
# include <string.h>
# define strdupa(s) \
({ \
const char *__old = (s); \
size_t __len = strlen(__old) + 1; \
char *__new = (char *) alloca(__len); \
(char *) memcpy(__new, __old, __len); \
})
#endif
#ifndef strndupa
# include <alloca.h>
# include <string.h>
# define strndupa(s, n) \
({ \
const char *__old = (s); \
size_t __len = strnlen(__old, (n)); \
char *__new = (char *) alloca(__len + 1); \
__new[__len] = '\0'; \
(char *) memcpy(__new, __old, __len); \
})
#endif
#endif /* COMMON_H */
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