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Save gc_arena after buffer got allocated

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Latest fix was freeing the buffer while it was still in use.
Fixes #3712
This commit is contained in:
Asmod4n
2017-06-19 20:27:38 +02:00
committed by GitHub
parent 0de7eec628
commit abca63c73b
1 changed files with 1 additions and 1 deletions
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mrbgems/mruby-string-ext/src/string.c
+1 -1
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@@ -601,12 +601,12 @@ mrb_str_upto(mrb_state *mrb, mrb_value beg)
if (ISDIGIT(RSTRING_PTR(beg)[0]) && ISDIGIT(RSTRING_PTR(end)[0]) &&
all_digits_p(RSTRING_PTR(beg), RSTRING_LEN(beg)) &&
all_digits_p(RSTRING_PTR(end), RSTRING_LEN(end))) {
int ai = mrb_gc_arena_save(mrb);
mrb_int min_width = RSTRING_LEN(beg);
mrb_int max_width = RSTRING_LEN(end);
mrb_int bi = mrb_int(mrb, mrb_str_to_inum(mrb, beg, 10, FALSE));
mrb_int ei = mrb_int(mrb, mrb_str_to_inum(mrb, end, 10, FALSE));
mrb_value str = mrb_str_new(mrb, NULL, max_width);
int ai = mrb_gc_arena_save(mrb);
char *buf = RSTRING_PTR(str);
while (bi <= ei) {