/* xsize.h -- Checked size_t computations.
- Copyright (C) 2003, 2008 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2008-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU Library General Public License as published
- by the Free Software Foundation; either version 2, or (at your option)
+ This program 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 2.1, 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
- Library General Public License for more details.
+ 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 Library General Public
- License along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- USA. */
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
#ifndef _XSIZE_H
#define _XSIZE_H
# include <stdint.h>
#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef XSIZE_INLINE
+# define XSIZE_INLINE _GL_INLINE
+#endif
+
/* The size of memory objects is often computed through expressions of
type size_t. Example:
void* p = malloc (header_size + n * element_size).
((N) <= SIZE_MAX ? (size_t) (N) : SIZE_MAX)
/* Sum of two sizes, with overflow check. */
-static inline size_t
+XSIZE_INLINE size_t
#if __GNUC__ >= 3
__attribute__ ((__pure__))
#endif
}
/* Sum of three sizes, with overflow check. */
-static inline size_t
+XSIZE_INLINE size_t
#if __GNUC__ >= 3
__attribute__ ((__pure__))
#endif
}
/* Sum of four sizes, with overflow check. */
-static inline size_t
+XSIZE_INLINE size_t
#if __GNUC__ >= 3
__attribute__ ((__pure__))
#endif
}
/* Maximum of two sizes, with overflow check. */
-static inline size_t
+XSIZE_INLINE size_t
#if __GNUC__ >= 3
__attribute__ ((__pure__))
#endif
/* Multiplication of a count with an element size, with overflow check.
The count must be >= 0 and the element size must be > 0.
- This is a macro, not an inline function, so that it works correctly even
+ This is a macro, not a function, so that it works correctly even
when N is of a wider type and N > SIZE_MAX. */
#define xtimes(N, ELSIZE) \
((N) <= SIZE_MAX / (ELSIZE) ? (size_t) (N) * (ELSIZE) : SIZE_MAX)
#define size_in_bounds_p(SIZE) \
((SIZE) != SIZE_MAX)
+_GL_INLINE_HEADER_END
+
#endif /* _XSIZE_H */