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Add NULL check in sg_compact(); fix #4139

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Yukihiro "Matz" Matsumoto
2018-10-12 08:30:57 +09:00
parent 82e00ce60f
commit 249fef7dc4
1 changed files with 3 additions and 1 deletions
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src/hash.c
+3 -1
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@@ -226,12 +226,14 @@ sg_index(mrb_state *mrb, seglist *t)
static void
sg_compact(mrb_state *mrb, seglist *t)
{
segment *seg = t->rootseg;
segment *seg;
mrb_int i;
segment *seg2 = NULL;
mrb_int i2;
mrb_int size = 0;
if (t == NULL) return;
seg = t->rootseg;
if (t->index && (size_t)t->size == t->index->size) {
sg_index(mrb, t);
return;