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2013-10-29 Marc Glisse <marc.glisse@inria.fr>

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PR tree-optimization/58689
include/
	* ansidecl.h (ATTRIBUTE_RETURNS_NONNULL): New macro.
	* libiberty.h (basename, lbasename, dos_lbasename, unix_lbasename,
	concat_copy): Mark with attributes nonnull(1) and returns_nonnull.
	(concat, reconcat, concat_copy2, choose_temp_base, xstrerror,
	xmalloc, xrealloc, xcalloc, xstrdup, xstrndup, xmemdup, pex_init):
	Mark with attribute returns_nonnull.

libiberty/
	* concat.c: Remove note about xmalloc.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204159 138bc75d-0d04-0410-961f-82ee72b054a4
This commit is contained in:
glisse
2013-10-29 13:15:48 +00:00
committed by Tom Tromey
parent eec6550343
commit 689a1abf0d
5 changed files with 43 additions and 31 deletions
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16
libiberty/concat.c
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@@ -25,23 +25,11 @@ Boston, MA 02110-1301, USA. */
@dots{}, @code{NULL})
Concatenate zero or more of strings and return the result in freshly
@code{xmalloc}ed memory. Returns @code{NULL} if insufficient memory is
available. The argument list is terminated by the first @code{NULL}
pointer encountered. Pointers to empty strings are ignored.
@code{xmalloc}ed memory. The argument list is terminated by the first
@code{NULL} pointer encountered. Pointers to empty strings are ignored.
@end deftypefn
NOTES
This function uses xmalloc() which is expected to be a front end
function to malloc() that deals with low memory situations. In
typical use, if malloc() returns NULL then xmalloc() diverts to an
error handler routine which never returns, and thus xmalloc will
never return a NULL pointer. If the client application wishes to
deal with low memory situations itself, it should supply an xmalloc
that just directly invokes malloc and blindly returns whatever
malloc returns.
*/