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