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Implement P0084r2. Changing emplace return types.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@276230 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-07-21 03:20:17 +00:00
parent 2edb326926
commit 3816ef98b1
16 changed files with 142 additions and 111 deletions
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16
test/std/containers/container.adaptors/stack/stack.defn/emplace.pass.cpp
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@@ -7,9 +7,11 @@
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <stack>
// template <class... Args> void emplace(Args&&... args);
// template <class... Args> reference emplace(Args&&... args);
#include <stack>
#include <cassert>
@@ -18,12 +20,14 @@
int main()
{
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
typedef Emplaceable T;
std::stack<Emplaceable> q;
q.emplace(1, 2.5);
q.emplace(2, 3.5);
q.emplace(3, 4.5);
T& r1 = q.emplace(1, 2.5);
assert(&r1 == &q.top());
T& r2 = q.emplace(2, 3.5);
assert(&r2 == &q.top());
T& r3 = q.emplace(3, 4.5);
assert(&r3 == &q.top());
assert(q.size() == 3);
assert(q.top() == Emplaceable(3, 4.5));
#endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
}