//SIGNATURE_CHECK (GNULIB_NAMESPACE::atan2, double, (double, double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cbrt, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::copysign, double, (double, double));
+#if GNULIB_TEST_COSF
+SIGNATURE_CHECK (GNULIB_NAMESPACE::cosf, float, (float));
+#endif
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cos, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::cosh, double, (double));
//SIGNATURE_CHECK (GNULIB_NAMESPACE::erf, double, (double));