//SIGNATURE_CHECK (GNULIB_NAMESPACE::cos, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cosh, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::erf, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::erfc, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cos, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cosh, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::erf, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::erfc, double, (double));