/* xalloc.h -- malloc with out-of-memory checking
- Copyright (C) 1990-2000, 2003-2004, 2006-2013 Free Software Foundation, Inc.
+ Copyright (C) 1990-2000, 2003-2004, 2006-2016 Free Software Foundation, Inc.
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
#include "xalloc-oversized.h"
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
_GL_INLINE_HEADER_BEGIN
#ifndef XALLOC_INLINE
# define XALLOC_INLINE _GL_INLINE
# define _GL_ATTRIBUTE_MALLOC
#endif
-#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
+#if ! defined __clang__ && \
+ (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
# define _GL_ATTRIBUTE_ALLOC_SIZE(args) __attribute__ ((__alloc_size__ args))
#else
# define _GL_ATTRIBUTE_ALLOC_SIZE(args)
_GL_ATTRIBUTE_ALLOC_SIZE ((2));
void *x2realloc (void *p, size_t *pn);
void *xmemdup (void const *p, size_t s)
- _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_ALLOC_SIZE ((2));
+ _GL_ATTRIBUTE_ALLOC_SIZE ((2));
char *xstrdup (char const *str)
_GL_ATTRIBUTE_MALLOC;
/* If P is null, allocate a block of at least *PN such objects;
otherwise, reallocate P so that it contains more than *PN objects
- each of S bytes. *PN must be nonzero unless P is null, and S must
- be nonzero. Set *PN to the new number of objects, and return the
- pointer to the new block. *PN is never set to zero, and the
- returned pointer is never null.
+ each of S bytes. S must be nonzero. Set *PN to the new number of
+ objects, and return the pointer to the new block. *PN is never set
+ to zero, and the returned pointer is never null.
Repeated reallocations are guaranteed to make progress, either by
allocating an initial block with a nonzero size, or by allocating a
}
else
{
- /* Set N = ceil (1.5 * N) so that progress is made if N == 1.
+ /* Set N = floor (1.5 * N) + 1 so that progress is made even if N == 0.
Check for overflow, so that N * S stays in size_t range.
- The check is slightly conservative, but an exact check isn't
+ The check may be slightly conservative, but an exact check isn't
worth the trouble. */
if ((size_t) -1 / 3 * 2 / s <= n)
xalloc_die ();
- n += (n + 1) / 2;
+ n += n / 2 + 1;
}
*pn = n;
#endif
+_GL_INLINE_HEADER_END
#endif /* !XALLOC_H_ */