1#include "ruby.h"
2
3static VALUE
4bug_sym_interned_p(VALUE self, VALUE name)
5{
6    ID id = rb_check_id(&name);
7    return id ? Qtrue : Qfalse;
8}
9
10void
11Init_intern(VALUE klass)
12{
13    rb_define_singleton_method(klass, "interned?", bug_sym_interned_p, 1);
14}
15