| // Copyright (C) 2015-2017 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This 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 General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-do compile { target c++14 } } |
| |
| #include <experimental/numeric> |
| |
| using std::experimental::fundamentals_v2::gcd; |
| |
| static_assert( gcd(1071, 462) == 21, "" ); |
| static_assert( gcd(2000, 20) == 20, "" ); |
| static_assert( gcd(2011, 17) == 1, "GCD of two primes is 1" ); |
| static_assert( gcd(200, 200) == 200, "GCD of equal numbers is that number" ); |
| static_assert( gcd(0, 13) == 13, "GCD of any number and 0 is that number" ); |
| static_assert( gcd(29, 0) == 29, "GCD of any number and 0 is that number" ); |
| static_assert( gcd(0, 0) == 0, "" ); |
| |
| static_assert(gcd(1u, 2) == 1, "unsigned and signed"); |
| static_assert(gcd(3, 4u) == 1, "signed and unsigned"); |
| static_assert(gcd(5u, 6u) == 1, "unsigned and unsigned"); |
