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| author | Mark H Weaver <mhw@netris.org> | 2014-01-12 07:11:44 -0500 |
|---|---|---|
| committer | Mark H Weaver <mhw@netris.org> | 2014-01-12 07:38:04 -0500 |
| commit | 63d869e74c183faf8e73c73908ef912fdb20198e (patch) | |
| tree | 3a142f5bc1b39cab7f9926a1e2bbff1e47fa3502 /libguile/hash.c | |
| parent | f974224d97bce334b6dcf20ecd8ffa84d270e0cd (diff) | |
| download | guile-63d869e74c183faf8e73c73908ef912fdb20198e.tar.gz | |
Fix hashing of empty vectors.
Fixes a bug introduced in cc1cd04f8111c306cf48b93e131d5c1765c808a3
"Fix hashing of vectors to run in bounded time."
* libguile/hash.c (scm_hasher): Avoid division by zero.
* test-suite/tests/hash.test ("hash"): Add tests.
Diffstat (limited to 'libguile/hash.c')
| -rw-r--r-- | libguile/hash.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/hash.c b/libguile/hash.c index c0a6109b4..342931051 100644 --- a/libguile/hash.c +++ b/libguile/hash.c @@ -245,7 +245,7 @@ scm_hasher(SCM obj, unsigned long n, size_t d) { i = len; h = n - 1; - d2 = (d - 1) / len; + d2 = len > 0 ? (d - 1) / len : 0; } while (i--) |