1 files changed, 14 insertions, 0 deletions
diff --git a/ext/-test-/class/class2name.c b/ext/-test-/class/class2name.c
new file mode 100644
index 0000000000..c48df6fb2a
--- /dev/null
+++ b/ext/-test-/class/class2name.c
@@ -0,0 +1,14 @@
+#include <ruby/ruby.h>
+
+static VALUE
+class2name(VALUE self, VALUE klass)
+{
+    const char *name = rb_class2name(klass);
+    return name ? rb_str_new_cstr(name) : Qnil;
+}
+
+void
+Init_class2name(VALUE klass)
+{
+    rb_define_singleton_method(klass, "class2name", class2name, 1);
+}