libstdc++-v3/testsuite/20_util/ratio/operations/ops_overflow_neg.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) 2008-2014 Free Software Foundation, Inc.
   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 3, 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 COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 #include <ratio>
  25
  26 void
  27 test01()
  28 {
  29   std::ratio_add<std::ratio<INTMAX_MAX, 1>, std::ratio<1>>::type r1
  30     __attribute__((unused));
  31 }
  32
  33 void
  34 test02()
  35 {
  36   std::ratio_multiply<std::ratio<-INTMAX_MAX, 2>, std::ratio<3, 2>>::type r1
  37     __attribute__((unused));
  38   std::ratio_multiply<std::ratio<INTMAX_MAX>, std::ratio<INTMAX_MAX>>::type r2
  39     __attribute__((unused));
  40 }
  41
  42 // { dg-error "required from here" "" { target *-*-* } 29 }
  43 // { dg-error "expected initializer" "" { target *-*-* } 36 }
  44 // { dg-error "expected initializer" "" { target *-*-* } 38 }
  45 // { dg-error "overflow in addition" "" { target *-*-* } 435 }
  46 // { dg-error "overflow in multiplication" "" { target *-*-* } 97 }
  47 // { dg-error "overflow in multiplication" "" { target *-*-* } 99 }
  48 // { dg-error "overflow in multiplication" "" { target *-*-* } 101 }
  49 // { dg-error "overflow in constant expression" "" { target *-*-* } 108 }
  50 // { dg-prune-output "out of range" }
  51 // { dg-prune-output "not usable in a constant expression" }