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libcxx/test/std/containers/sequences/list/list.modifiers/emplace.pass.cpp

68 lines
1.5 KiB
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.
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <list>
// template <class... Args> void emplace(const_iterator p, Args&&... args);
#include <list>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
class A
{
int i_;
double d_;
A(const A&);
A& operator=(const A&);
public:
A(int i, double d)
: i_(i), d_(d) {}
int geti() const {return i_;}
double getd() const {return d_;}
};
int main()
{
{
std::list<A> c;
c.emplace(c.cbegin(), 2, 3.5);
assert(c.size() == 1);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
c.emplace(c.cend(), 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::list<A, min_allocator<A>> c;
c.emplace(c.cbegin(), 2, 3.5);
assert(c.size() == 1);
assert(c.front().geti() == 2);
assert(c.front().getd() == 3.5);
c.emplace(c.cend(), 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);
}
}