X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libstdc%2B%2B-v3%2Ftestsuite%2F20_util%2Fratio%2Fcomparisons%2Fcomp2.cc;fp=libstdc%2B%2B-v3%2Ftestsuite%2F20_util%2Fratio%2Fcomparisons%2Fcomp2.cc;h=e741c1435102bdfc86738cb8e686d5e86cd116ce;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc new file mode 100644 index 00000000..e741c143 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/ratio/comparisons/comp2.cc @@ -0,0 +1,50 @@ +// { dg-options "-std=gnu++0x" } +// { dg-require-cstdint "" } + +// Copyright (C) 2008, 2009 Free Software Foundation +// +// 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 +// . + +#include +#include + +static const std::intmax_t M = INTMAX_MAX; + +void +test01() +{ + bool test __attribute__((unused)) = true; + + // No overflow with same denominator + VERIFY( (std::ratio_less, + std::ratio>::value == 1) ); + + VERIFY( (std::ratio_less, + std::ratio>::value == 0) ); + + // No overflow if signs differ + VERIFY( (std::ratio_less, + std::ratio>::value == 1) ); + + VERIFY( (std::ratio_less, + std::ratio<-M, M - 1>>::value == 0) ); +} + +int main() +{ + test01(); + return 0; +}