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Unverified Commit 2275e762 authored by Yukihiro "Matz" Matsumoto's avatar Yukihiro "Matz" Matsumoto
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backtrace.c: pedantic check for empty backtrace; ref #5394

parent 85808e50
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src/backtrace.c
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...@@ -197,6 +197,7 @@ mrb_unpack_backtrace(mrb_state *mrb, mrb_value backtrace) ...@@ -197,6 +197,7 @@ mrb_unpack_backtrace(mrb_state *mrb, mrb_value backtrace)
bt = (struct backtrace_location*)mrb_data_check_get_ptr(mrb, backtrace, &bt_type); bt = (struct backtrace_location*)mrb_data_check_get_ptr(mrb, backtrace, &bt_type);
if (bt == NULL) goto empty_backtrace; if (bt == NULL) goto empty_backtrace;
n = (mrb_int)RDATA(backtrace)->flags; n = (mrb_int)RDATA(backtrace)->flags;
if (n == 0) goto empty_backtrace;
backtrace = mrb_ary_new_capa(mrb, n); backtrace = mrb_ary_new_capa(mrb, n);
ai = mrb_gc_arena_save(mrb); ai = mrb_gc_arena_save(mrb);
for (i = 0; i < n; i++) { for (i = 0; i < n; i++) {
......
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