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libcxx_old/test/std/utilities/smartptr/unique.ptr/unique.ptr.create/make_unique.array.pass.cpp

48 lines
1.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03, c++11
#include <memory>
#include <string>
#include <cassert>
#include "test_macros.h"
// The only way to create an unique_ptr<T[]> is to default construct them.
class foo {
public:
foo () : val_(3) {}
int get () const { return val_; }
private:
int val_;
};
int main(int, char**)
{
{
auto p1 = std::make_unique<int[]>(5);
for ( int i = 0; i < 5; ++i )
assert ( p1[i] == 0 );
}
{
auto p2 = std::make_unique<std::string[]>(5);
for ( int i = 0; i < 5; ++i )
assert ( p2[i].size () == 0 );
}
{
auto p3 = std::make_unique<foo[]>(7);
for ( int i = 0; i < 7; ++i )
assert ( p3[i].get () == 3 );
}
return 0;
}