It turns out that realloc(ptr, 0) --> free(ptr) is not actually required by the C standard (whereas realloc(NULL, size) --> malloc(size) is).

Therefore, explicitly model the behaviour expected by our libraries (that realloc of 0 size is equivalent to free).

svn path=/trunk/netsurf/; revision=10524

1 files changed, 5 insertions, 0 deletions

diff --git a/css/css.c b/css/css.c
index f051d52b9..7fb17519b 100644
--- a/css/css.c
+++ b/css/css.c
@@ -60,6 +60,11 @@ static nserror nscss_import(hlcache_handle *handle,
  */
 static void *myrealloc(void *ptr, size_t size, void *pw)
 {
+	if (size == 0) {
+		free(ptr);
+		return NULL;
+	}
+
 	return realloc(ptr, size);
 }