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-rw-r--r--xdiff/xprepare.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/xdiff/xprepare.c b/xdiff/xprepare.c
index 620fc9a657..5b676b7ca5 100644
--- a/xdiff/xprepare.c
+++ b/xdiff/xprepare.c
@@ -239,6 +239,8 @@ int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
long enl1, enl2, sample;
xdlclassifier_t cf;
+ memset(&cf, 0, sizeof(cf));
+
/*
* For histogram diff, we can afford a smaller sample size and
* thus a poorer estimate of the number of lines, as the hash