Mercurial > hg > CbC > CbC_gcc
view libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/uchar.cc @ 152:2b5abeee2509
update gcc11
author | anatofuz |
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date | Mon, 25 May 2020 07:50:57 +0900 |
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// Copyright (C) 2020 Free Software Foundation, Inc. // // 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 // <http://www.gnu.org/licenses/>. // { dg-options "-fchar8_t" } // { dg-do run } #include <algorithm> #include <testsuite_hooks.h> // Check that the memcmp optimization in std::lexicographical_compare // still works for mixed-type comparisons. void test01() { unsigned char a = 0; char8_t b = 1; VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) ); VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) ); } void test02() { // N.B. if char is signed this won't actually use the memcmp optimization. unsigned char a = 0; char b = 1; VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) ); VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) ); } void test03() { // N.B. if char is signed this won't actually use the memcmp optimization. char a = 0; char8_t b = 1; VERIFY( std::lexicographical_compare(&a, &a + 1, &b, &b + 1) ); VERIFY( ! std::lexicographical_compare(&b, &b + 1, &a, &a + 1) ); } int main() { test01(); test02(); test03(); }