1 files changed, 20 insertions, 0 deletions
diff --git a/ruby_1_9_3/ext/-test-/string/cstr.c b/ruby_1_9_3/ext/-test-/string/cstr.c
new file mode 100644
index 0000000000..d4ff360575
--- /dev/null
+++ b/ruby_1_9_3/ext/-test-/string/cstr.c
@@ -0,0 +1,20 @@
+#include "ruby.h"
+
+static VALUE
+bug_str_cstr_term(VALUE str)
+{
+    long len;
+    char *s;
+    rb_str_modify(str);
+    len = RSTRING_LEN(str);
+    RSTRING_PTR(str)[len] = 'x';
+    s = StringValueCStr(str);
+    rb_gc();
+    return INT2NUM(s[len]);
+}
+
+void
+Init_cstr(VALUE klass)
+{
+    rb_define_method(klass, "cstr_term", bug_str_cstr_term, 0);
+}