cxx/test/containers/sequences/vector/vector.modifiers/emplace_back.pass.cpp
Howard Hinnant bc8d3f97eb libcxx initial import
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:42:16 +00:00

85 lines
1.8 KiB
C++

//===----------------------------------------------------------------------===//
//
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <vector>
// template <class... Args> void emplace_back(Args&&... args);
#include <vector>
#include <cassert>
#include "../../../stack_allocator.h"
#ifdef _LIBCPP_MOVE
class A
{
int i_;
double d_;
A(const A&);
A& operator=(const A&);
public:
A(int i, double d)
: i_(i), d_(d) {}
A(A&& a)
: i_(a.i_),
d_(a.d_)
{
a.i_ = 0;
a.d_ = 0;
}
A& operator=(A&& a)
{
i_ = a.i_;
d_ = a.d_;
a.i_ = 0;
a.d_ = 0;
return *this;
}
int geti() const {return i_;}
double getd() const {return d_;}
};
#endif
int main()
{
#ifdef _LIBCPP_MOVE
{
std::vector<A> c;
c.emplace_back(2, 3.5);
assert(c.size() == 1);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
c.emplace_back(3, 4.5);
assert(c.size() == 2);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
assert(c.back().geti() == 3);
assert(c.back().getd() == 4.5);
}
{
std::vector<A, stack_allocator<A, 4> > c;
c.emplace_back(2, 3.5);
assert(c.size() == 1);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
c.emplace_back(3, 4.5);
assert(c.size() == 2);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
assert(c.back().geti() == 3);
assert(c.back().getd() == 4.5);
}
#endif
}