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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 23_containers / vector / ext_pointer / modifiers / erase.cc

// Bob Walters 10-2008

// Test for Container using non-standard pointer types.

// Copyright (C) 2008-2024 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 <ext/extptr_allocator.h>

const int  A[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
const int A1[] = {0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
const int A2[] = {0, 2, 3, 4, 10, 11, 12, 13, 14, 15};
const int A3[] = {0, 2, 3, 4, 10, 11};
const int A4[] = {4, 10, 11};
const int A5[] = {4, 10};
const unsigned int  N = sizeof(A)  / sizeof(int);
const unsigned int N1 = sizeof(A1) / sizeof(int);
const unsigned int N2 = sizeof(A2) / sizeof(int);
const unsigned int N3 = sizeof(A3) / sizeof(int);
const unsigned int N4 = sizeof(A4) / sizeof(int);
const unsigned int N5 = sizeof(A5) / sizeof(int);

void
test01()
{
  typedef std::vector<int,__gnu_cxx::_ExtPtr_allocator<int> >  vec_type;
  typedef vec_type::iterator iterator_type;

  vec_type v(A, A + N);

  iterator_type it1 = v.erase(v.begin() + 1);
  VERIFY( it1 == v.begin() + 1 );
  VERIFY( v.size() == N1 );
  VERIFY( std::equal(v.begin(), v.end(), A1) );
  
  iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
  VERIFY( it2 == v.begin() + 4 );
  VERIFY( v.size() == N2 );
  VERIFY( std::equal(v.begin(), v.end(), A2) );
  
  iterator_type it3 = v.erase(v.begin() + 6, v.end());
  VERIFY( it3 == v.begin() + 6 );
  VERIFY( v.size() == N3 );
  VERIFY( std::equal(v.begin(), v.end(), A3) );

  iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
  VERIFY( it4 == v.begin() );
  VERIFY( v.size() == N4 );
  VERIFY( std::equal(v.begin(), v.end(), A4) );

  iterator_type it5 = v.erase(v.begin() + 2);
  VERIFY( it5 == v.begin() + 2 );
  VERIFY( v.size() == N5 );
  VERIFY( std::equal(v.begin(), v.end(), A5) );

  iterator_type it6 = v.erase(v.begin(), v.end());
  VERIFY( it6 == v.begin() );
  VERIFY( v.empty() );
}

void
test02()
{
  typedef __gnu_cxx::_ExtPtr_allocator<int> int_alloc_type;
  typedef __gnu_cxx::_ExtPtr_allocator< std::vector<int, int_alloc_type> > vec_alloc_type;
  typedef std::vector<std::vector<int, int_alloc_type >,vec_alloc_type>  vec_type; 
  typedef vec_type::iterator          iterator_type;

  vec_type v, v1, v2, v3, v4, v5;
  for (unsigned int i = 0; i < N; ++i)
    v.push_back(std::vector<int,int_alloc_type>(1, A[i]));
  for (unsigned int i = 0; i < N1; ++i)
    v1.push_back(std::vector<int,int_alloc_type>(1, A1[i]));
  for (unsigned int i = 0; i < N2; ++i)
    v2.push_back(std::vector<int,int_alloc_type>(1, A2[i]));
  for (unsigned int i = 0; i < N3; ++i)
    v3.push_back(std::vector<int,int_alloc_type>(1, A3[i]));
  for (unsigned int i = 0; i < N4; ++i)
    v4.push_back(std::vector<int,int_alloc_type>(1, A4[i]));
  for (unsigned int i = 0; i < N5; ++i)
    v5.push_back(std::vector<int,int_alloc_type>(1, A5[i]));
  
  iterator_type it1 = v.erase(v.begin() + 1);
  VERIFY( it1 == v.begin() + 1 );
  VERIFY( v.size() == N1 );
  VERIFY( std::equal(v.begin(), v.end(), v1.begin()) );
  
  iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
  VERIFY( it2 == v.begin() + 4 );
  VERIFY( v.size() == N2 );
  VERIFY( std::equal(v.begin(), v.end(), v2.begin()) );
  
  iterator_type it3 = v.erase(v.begin() + 6, v.end());
  VERIFY( it3 == v.begin() + 6 );
  VERIFY( v.size() == N3 );
  VERIFY( std::equal(v.begin(), v.end(), v3.begin()) );

  iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
  VERIFY( it4 == v.begin() );
  VERIFY( v.size() == N4 );
  VERIFY( std::equal(v.begin(), v.end(), v4.begin()) );

  iterator_type it5 = v.erase(v.begin() + 2);
  VERIFY( it5 == v.begin() + 2 );
  VERIFY( v.size() == N5 );
  VERIFY( std::equal(v.begin(), v.end(), v5.begin()) );

  iterator_type it6 = v.erase(v.begin(), v.end());
  VERIFY( it6 == v.begin() );
  VERIFY( v.empty() );
}

int main()
{
  test01();
  test02();
  return 0;
}