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test-hashmap: squelch gcc compiler warning

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At least on this developer's MacOSX (Snow Leopard, gcc-4.2.1), GCC
prints a warning that 'hash' may be used uninitialized when
compiling test-hashmap that 'hash' may be used uninitialized (but
GCC 4.6.3 on this developer's Ubuntu server does not report this
problem).

The old compiler is wrong, of course, as the switch (method & 3)
statement already handles all the possible cases, but that does not
help in a scenario where it is hard or impossible to upgrade to a
newer compiler (e.g. being stuck on an older MacOSX and having to
rely on Xcode).

So let's just initialize the variable and be done with it, it is
hardly a crucial part of the code because it is only used by the
test suite and invisible to the end users.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2014-12-09 10:48:36 +01:00 committed by Junio C Hamano
parent 6a364ced49
commit 3b9a2b07ef
1 changed files with 1 additions and 1 deletions
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2
test-hashmap.c
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@ -48,7 +48,7 @@ static struct test_entry *alloc_test_entry(int hash, char *key, int klen,
static unsigned int hash(unsigned int method, unsigned int i, const char *key)
{
unsigned int hash;
unsigned int hash = 0;
switch (method & 3)
{
case HASH_METHOD_FNV: