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

   1 // { dg-do compile { target c++11 } }
   2 // { dg-require-cstdint "" }
   3
   4 // 2008-07-03 Chris Fairles <chris.fairles@gmail.com>
   5
   6 // Copyright (C) 2008-2022 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License
  20 // along with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 #include <ratio>
  24
  25 void
  26 test01()
  27 {
  28   std::ratio_add<std::ratio<INTMAX_MAX, 1>, std::ratio<1>>::type r1
  29     __attribute__((unused));
  30 }
  31
  32 void
  33 test02()
  34 {
  35   std::ratio_multiply<std::ratio<-INTMAX_MAX, 2>, std::ratio<3, 2>>::type r1
  36     __attribute__((unused));
  37   std::ratio_multiply<std::ratio<INTMAX_MAX>, std::ratio<INTMAX_MAX>>::type r2
  38     __attribute__((unused));
  39 }
  40
  41 // { dg-error "required from here" "" { target *-*-* } 28 }
  42 // { dg-error "expected initializer" "" { target *-*-* } 28 }
  43 // { dg-error "expected initializer" "" { target *-*-* } 35 }
  44 // { dg-error "expected initializer" "" { target *-*-* } 37 }
  45 // { dg-error "overflow in addition" "" { target *-*-* } 0 }
  46 // { dg-error "overflow in multiplication" "" { target *-*-* } 98 }
  47 // { dg-error "overflow in multiplication" "" { target *-*-* } 100 }
  48 // { dg-error "overflow in multiplication" "" { target *-*-* } 102 }
  49 // { dg-error "overflow in constant expression" "" { target *-*-* } 0 }
  50 // { dg-error "narrowing conversion" "" { target *-*-* } 0 }
  51 // { dg-prune-output "out of range" }
  52 // { dg-prune-output "not usable in a constant expression" }