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libcxx/test/std/containers/sequences/vector.bool/reference.swap.pass.cpp

40 lines
900 B
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <vector>
// vector<bool>
// static void swap(reference x, reference y) noexcept;
#include <vector>
#include <cassert>
#include "test_macros.h"
int main()
{
bool a[] = {false, true, false, true};
bool* an = a + sizeof(a)/sizeof(a[0]);
std::vector<bool> v(a, an);
std::vector<bool>::reference r1 = v[0];
std::vector<bool>::reference r2 = v[3];
#if TEST_STD_VER >= 11
static_assert((noexcept(v.swap(r1,r2))), "");
#endif
assert(!r1);
assert( r2);
v.swap(r1, r2);
assert( r1);
assert(!r2);
}