Memory leak in ev.c, the second

[Marc Lehmann]

On Wed, Feb 20, 2013 at 05:28:57PM +0100, Alexander Klauer <Alexander.Klauer at itwm.fraunhofer.de> wrote:
> semantics as a call to free(ptr). A C89-conformant implementation may
> return a unique non-NULL pointer which may be safely passed to
> free().

And when does this happen *in libev*? realloc frees the memory for cases
where the ptr is != 0 and size = 0, which is all that libev relies on. And
currently, the default allocator calls free in all cases where size == 0
for portability.

> The attached patch changes ev_realloc_emul() so that
> ev_realloc_emul(ptr, 0) has free(ptr) semantics in all cases.

When sending patches you should always check current sources, because that
patch has already been applied, for other reasons.

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