libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/17_hyperg/compile_cxx17.cc

   1 // Copyright (C) 2018-2023 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-options "-std=c++17" }
  19 // { dg-do compile { target c++17 } }
  20
  21 #include <tr1/cmath>
  22
  23 void
  24 test01()
  25 {
  26   // For C++17 most TR1 special functions re-use the C++17 functions
  27   // in namespace std, but in strict -std=c++17 mode the hypergeometric
  28   // functions are not defined in namespace std. This test ensures they
  29   // are still available in namespace std::tr1.
  30   (void) std::tr1::hyperg(1.0, 2.0, 3.0, 4.0);
  31 }