1// { dg-options "-std=gnu++11" } 2// 2008-05-26 Paolo Carlini <paolo.carlini@oracle.com> 3// 4// Copyright (C) 2008-2015 Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11// 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16// 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21#include <cmath> 22#include <testsuite_hooks.h> 23#include <testsuite_tr1.h> 24 25// DR 550. What should the return type of pow(float,int) be? 26void test01() 27{ 28 bool test __attribute__((unused)) = true; 29 using __gnu_test::check_ret_type; 30 31 const int i1 = 1; 32 const float f1 = 1.0f; 33 const double d1 = 1.0; 34 const long double ld1 = 1.0l; 35 36 check_ret_type<double>(std::pow(f1, i1)); 37 VERIFY( std::pow(f1, i1) == std::pow(double(f1), double(i1)) ); 38 check_ret_type<double>(std::pow(d1, i1)); 39 check_ret_type<long double>(std::pow(ld1, i1)); 40} 41 42int main() 43{ 44 test01(); 45 return 0; 46} 47