ver

static VALUE
BigDecimal_version(VALUE self)
{
  /*
   * 1.0.0: Ruby 1.8.0
   * 1.0.1: Ruby 1.8.1
   * 1.1.0: Ruby 1.9.3
   */
#ifndef RUBY_BIGDECIMAL_VERSION
# error RUBY_BIGDECIMAL_VERSION is not defined
#endif
  rb_warning("BigDecimal.ver is deprecated; use BigDecimal::VERSION instead.");
  return rb_str_new2(RUBY_BIGDECIMAL_VERSION);
}