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//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// <utility>
// template <class T1, class T2> struct pair
// void swap(pair& p);
#include <utility>
#include <cassert>
struct S {
int i;
S() : i(0) {}
S(int j) : i(j) {}
S * operator& () { assert(false); return this; }
S const * operator& () const { assert(false); return this; }
bool operator==(int x) const { return i == x; }
};
int main()
{
{
typedef std::pair<int, short> P1;
P1 p1(3, static_cast<short>(4));
P1 p2(5, static_cast<short>(6));
p1.swap(p2);
assert(p1.first == 5);
assert(p1.second == 6);
assert(p2.first == 3);
assert(p2.second == 4);
}
{
typedef std::pair<int, S> P1;
P1 p1(3, S(4));
P1 p2(5, S(6));
p1.swap(p2);
assert(p1.first == 5);
assert(p1.second == 6);
assert(p2.first == 3);
assert(p2.second == 4);
}
}
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