/* Test for powl Copyright (C) 2011-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include #include #include #include static int do_test (void) { int result = 0; #ifndef NO_LONG_DOUBLE # if LDBL_MANT_DIG == 64 { long double x = 1e-20; union ieee854_long_double u; u.ieee.mantissa0 = 1; u.ieee.mantissa1 = 1; u.ieee.exponent = 0; u.ieee.negative = 0; (void) powl (0.2, u.d); x = powl (x, 1.5); if (fabsl (x - 1e-30) > 1e-10) { printf ("powl (1e-20, 1.5): wrong result: %Lg\n", x); result = 1; } } # endif #endif return result; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"