66350f0fb1
Bitset tests feature a sequence of tests of increasing bitset sizes, but these tests rely on exceptions when the bitset size is less than 50 elements. This change adds a flag to tell whether a test should throw. If it must throw it will be skipped under no-exceptions. Differential Revision: https://reviews.llvm.org/D26140 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@286474 91177308-0d34-0410-b5e6-96231b3b80d8
69 lines
1.5 KiB
C++
69 lines
1.5 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// test bitset<N>& flip(size_t pos);
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#include <bitset>
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#include <cstdlib>
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#include <cassert>
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#include "test_macros.h"
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template <std::size_t N>
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std::bitset<N>
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make_bitset()
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{
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std::bitset<N> v;
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for (std::size_t i = 0; i < N; ++i)
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v[i] = static_cast<bool>(std::rand() & 1);
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return v;
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}
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template <std::size_t N>
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void test_flip_one(bool test_throws)
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{
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std::bitset<N> v = make_bitset<N>();
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#ifdef TEST_HAS_NO_EXCEPTIONS
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if (test_throws) return;
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#else
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try
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{
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#endif
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v.flip(50);
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bool b = v[50];
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if (50 >= v.size())
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assert(false);
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assert(v[50] == b);
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v.flip(50);
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assert(v[50] != b);
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v.flip(50);
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assert(v[50] == b);
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assert(!test_throws);
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#ifndef TEST_HAS_NO_EXCEPTIONS
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}
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catch (std::out_of_range&)
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{
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assert(test_throws);
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}
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#endif
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}
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int main()
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{
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test_flip_one<0>(true);
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test_flip_one<1>(true);
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test_flip_one<31>(true);
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test_flip_one<32>(true);
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test_flip_one<33>(true);
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test_flip_one<63>(false);
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test_flip_one<64>(false);
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test_flip_one<65>(false);
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test_flip_one<1000>(false);
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}
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