String#initialize to make a string empty; ref #3574

d27a3d47 · Yukihiro "Matz" Matsumoto · a14a930c · d27a3d47
Commit d27a3d47 authored Apr 03, 2017 by Yukihiro "Matz" Matsumoto
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Showing with 4 additions and 2 deletions

src/string.c src/string.c +4 -2

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--- a/src/string.c
+++ b/src/string.c
@@ -1665,9 +1665,11 @@ mrb_str_init(mrb_state *mrb, mrb_value self)
 {
  mrb_value str2;
-  if (mrb_get_args(mrb, "|S", &str2) == 1) {
+  if (mrb_get_args(mrb, "|S", &str2) == 0) {
-    str_replace(mrb, mrb_str_ptr(self), mrb_str_ptr(str2));
+    struct RString *s = str_new(mrb, 0, 0);
+    str2 = mrb_obj_value(s);
  }
+  str_replace(mrb, mrb_str_ptr(self), mrb_str_ptr(str2));
  return self;
 }