libstdc++-v3/testsuite/20_util/ratio/operations/ops_overflow.cc

   1 // { dg-do compile }
   2 // { dg-options "-std=gnu++0x" }
   3 // { dg-require-cstdint "" }
   4
   5 // 2008-07-03 Chris Fairles <chris.fairles@gmail.com>
   6
   7 // Copyright (C) 2008 Free Software Foundation
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 2, or (at your option)
  13 // any later version.
  14
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19
  20 // You should have received a copy of the GNU General Public License
  21 // along with this library; see the file COPYING.  If not, write to
  22 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  23 // Boston, MA 02110-1301, USA.
  24
  25 #include <ratio>
  26
  27 void
  28 test01()
  29 {
  30   std::ratio_add<std::ratio<INTMAX_MAX, 1>, std::ratio<1>>::type r1;
  31 }
  32
  33 void
  34 test02()
  35 {
  36   std::ratio_multiply<std::ratio<-INTMAX_MAX, 2>, std::ratio<3, 2>>::type r1;
  37   std::ratio_multiply<std::ratio<INTMAX_MAX>, std::ratio<INTMAX_MAX>>::type r2;
  38 }
  39
  40 // { dg-error "instantiated from here" "" { target *-*-* } 30 }
  41 // { dg-error "instantiated from here" "" { target *-*-* } 36 }
  42 // { dg-error "instantiated from here" "" { target *-*-* } 37 }
  43 // { dg-error "overflow in addition" "" { target *-*-* } 127 }
  44 // { dg-error "overflow in multiplication" "" { target *-*-* } 95 }
  45 // { dg-error "overflow in multiplication" "" { target *-*-* } 97 }
  46 // { dg-error "overflow in multiplication" "" { target *-*-* } 99 }
  47 // { dg-excess-errors "In instantiation of" }
  48 // { dg-excess-errors "out of range" }