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// { dg-options "-std=gnu++0x" }

// Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

// <http://www.gnu.org/licenses/>.

#include <vector>

#include <testsuite_hooks.h>

#include <testsuite_rvalref.h>

using namespace __gnu_test;

// Test vector::push_back makes no unneeded copies.

void

test01()

{

  bool test __attribute__((unused)) = true;

  std::vector<copycounter> a;

  copycounter c(1);

  copycounter::copycount = 0;

  for(int i = 0; i < 10; ++i)

    a.push_back(c);

  VERIFY(copycounter::copycount == 10);

  for(int i = 0; i < 100; ++i)

    a.insert(a.begin() + i, c);

  VERIFY(copycounter::copycount == 110);

  for(int i = 0; i < 1000; ++i)

    a.insert(a.end(), c);

  VERIFY(copycounter::copycount == 1110);

}

// Test vector::insert(iterator, iterator, iterator) makes no unneeded copies

// when it has to also reallocate the vector's internal buffer.

void

test02()

{

  bool test __attribute__((unused)) = true;

  copycounter c(1);

  std::vector<copycounter> a(10, c), b(100, c);

  copycounter::copycount = 0;

  a.insert(a.begin(), b.begin(), b.begin() + 20);

  VERIFY(copycounter::copycount == 20);

  a.insert(a.end(), b.begin(), b.begin() + 50);

  VERIFY(copycounter::copycount == 70);

  a.insert(a.begin() + 50, b.begin(), b.end());

  VERIFY(copycounter::copycount == 170);

}

// Test vector::insert(iterator, iterator, iterator) makes no unneeded copies

// when it doesn't have to reallocate the vector's internal buffer.

void

test03()

{

  bool test __attribute__((unused)) = true;

  copycounter c(1);

  std::vector<copycounter> a(10, c), b(100, c);

  copycounter::copycount = 0;

  a.reserve(1000);

  VERIFY(copycounter::copycount == 0);

  a.insert(a.begin(), b.begin(), b.begin() + 20);

  VERIFY(copycounter::copycount == 20);

  a.insert(a.end(), b.begin(), b.begin() + 50);

  VERIFY(copycounter::copycount == 70);

  a.insert(a.begin() + 50, b.begin(), b.end());

  VERIFY(copycounter::copycount == 170);

}

// Test vector::insert(iterator, count, value) makes no unneeded copies

// when it has to also reallocate the vector's internal buffer.

void

test04()

{

  bool test __attribute__((unused)) = true;

  copycounter c(1);

  std::vector<copycounter> a(10, c);

  copycounter::copycount = 0;

  a.insert(a.begin(), 20, c);

  VERIFY(copycounter::copycount == 20);

  a.insert(a.end(), 50, c);

  VERIFY(copycounter::copycount == 70);

  a.insert(a.begin() + 50, 100, c);

  VERIFY(copycounter::copycount == 170);

}

// Test vector::insert(iterator, count, value) makes no unneeded copies

// when it doesn't have to reallocate the vector's internal buffer.

void

test05()

{

  bool test __attribute__((unused)) = true;

  copycounter c(1);

  std::vector<copycounter> a(10, c);

  copycounter::copycount = 0;

  a.reserve(1000);

  a.insert(a.begin(), 20, c);

  // NOTE : These values are each one higher than might be expected, as

  // vector::insert(iterator, count, value) copies the value it is given

  // when it doesn't reallocate the buffer.

  VERIFY(copycounter::copycount == 20 + 1);

  a.insert(a.end(), 50, c);

  VERIFY(copycounter::copycount == 70 + 2);

  a.insert(a.begin() + 50, 100, c);

  VERIFY(copycounter::copycount == 170 + 3);

}

int main()

{

  test01();

  test02();

  test03();

  test04();

  test05();

  return 0;

}