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macro mrb_bool() may evaluate arg multiple times; ref #3228

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Yukihiro "Matz" Matsumoto
2016-10-24 01:30:31 +09:00
parent 7061658b5b
commit c45ed46f28
2 changed files with 7 additions and 6 deletions
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src/kernel.c
+3 -2
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@@ -960,10 +960,11 @@ obj_respond_to(mrb_state *mrb, mrb_value self)
if (!respond_to_p) {
rtm_id = mrb_intern_lit(mrb, "respond_to_missing?");
if (basic_obj_respond_to(mrb, self, rtm_id, !priv)) {
mrb_value args[2];
mrb_value args[2], v;
args[0] = mid;
args[1] = mrb_bool_value(priv);
return mrb_bool_value(mrb_bool(mrb_funcall_argv(mrb, self, rtm_id, 2, args)));
v = mrb_funcall_argv(mrb, self, rtm_id, 2, args);
return mrb_bool_value(mrb_bool(v));
}
}
return mrb_bool_value(respond_to_p);