[Zlib-devel] [PATCH] One remaining Valgrind error

[Mark Adler]

On Aug 16, 2012, at 11:23 AM, Daniel Richard G. wrote:
> ==7349== Conditional jump or move depends on uninitialised value(s)
> ==7349==    at 0x40512C: fill_window (deflate.c:1442)

The comment just below that line appears to verify valgrind's finding:

                /* If n is not on any hash chain, prev[n] is garbage but
                 * its value will never be used.
                 */

I will look for a more gentle way than a 64K memset to avoid that uninitialized access (or "uninitialised" access as Julian writes).

Mark