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fix segmentation fault in Array#first

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This commit is contained in:
Akira Kuroda
2012-07-29 00:21:40 +09:00
parent 919a84771b
commit a2aa7e7f52
2 changed files with 21 additions and 1 deletions
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src/array.c
+3
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@@ -764,6 +764,9 @@ mrb_ary_first(mrb_state *mrb, mrb_value self)
if (mrb_get_args(mrb, "|i", &size) == 0) {
return (a->len > 0)? a->ptr[0]: mrb_nil_value();
}
if (size < 0) {
mrb_raise(mrb, E_ARGUMENT_ERROR, "negative array size");
}
if (size > a->len) size = a->len;
if (a->flags & MRB_ARY_SHARED) {