libstdc++-v3/testsuite/23_containers/vector/ext_pointer/modifiers/erase.cc

   1 // Bob Walters 10-2008
   2
   3 // Test for Container using non-standard pointer types.
   4
   5 // Copyright (C) 2008-2017 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22
  23 #include <vector>
  24 #include <testsuite_hooks.h>
  25 #include <ext/extptr_allocator.h>
  26
  27 const int  A[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
  28 const int A1[] = {0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
  29 const int A2[] = {0, 2, 3, 4, 10, 11, 12, 13, 14, 15};
  30 const int A3[] = {0, 2, 3, 4, 10, 11};
  31 const int A4[] = {4, 10, 11};
  32 const int A5[] = {4, 10};
  33 const unsigned int  N = sizeof(A)  / sizeof(int);
  34 const unsigned int N1 = sizeof(A1) / sizeof(int);
  35 const unsigned int N2 = sizeof(A2) / sizeof(int);
  36 const unsigned int N3 = sizeof(A3) / sizeof(int);
  37 const unsigned int N4 = sizeof(A4) / sizeof(int);
  38 const unsigned int N5 = sizeof(A5) / sizeof(int);
  39
  40 void
  41 test01()
  42 {
  43   typedef std::vector<int,__gnu_cxx::_ExtPtr_allocator<int> >  vec_type;
  44   typedef vec_type::iterator iterator_type;
  45
  46   vec_type v(A, A + N);
  47
  48   iterator_type it1 = v.erase(v.begin() + 1);
  49   VERIFY( it1 == v.begin() + 1 );
  50   VERIFY( v.size() == N1 );
  51   VERIFY( std::equal(v.begin(), v.end(), A1) );
  52
  53   iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
  54   VERIFY( it2 == v.begin() + 4 );
  55   VERIFY( v.size() == N2 );
  56   VERIFY( std::equal(v.begin(), v.end(), A2) );
  57
  58   iterator_type it3 = v.erase(v.begin() + 6, v.end());
  59   VERIFY( it3 == v.begin() + 6 );
  60   VERIFY( v.size() == N3 );
  61   VERIFY( std::equal(v.begin(), v.end(), A3) );
  62
  63   iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
  64   VERIFY( it4 == v.begin() );
  65   VERIFY( v.size() == N4 );
  66   VERIFY( std::equal(v.begin(), v.end(), A4) );
  67
  68   iterator_type it5 = v.erase(v.begin() + 2);
  69   VERIFY( it5 == v.begin() + 2 );
  70   VERIFY( v.size() == N5 );
  71   VERIFY( std::equal(v.begin(), v.end(), A5) );
  72
  73   iterator_type it6 = v.erase(v.begin(), v.end());
  74   VERIFY( it6 == v.begin() );
  75   VERIFY( v.empty() );
  76 }
  77
  78 void
  79 test02()
  80 {
  81   typedef __gnu_cxx::_ExtPtr_allocator<int> int_alloc_type;
  82   typedef __gnu_cxx::_ExtPtr_allocator< std::vector<int, int_alloc_type> > vec_alloc_type;
  83   typedef std::vector<std::vector<int, int_alloc_type >,vec_alloc_type>  vec_type;
  84   typedef vec_type::iterator          iterator_type;
  85
  86   vec_type v, v1, v2, v3, v4, v5;
  87   for (unsigned int i = 0; i < N; ++i)
  88     v.push_back(std::vector<int,int_alloc_type>(1, A[i]));
  89   for (unsigned int i = 0; i < N1; ++i)
  90     v1.push_back(std::vector<int,int_alloc_type>(1, A1[i]));
  91   for (unsigned int i = 0; i < N2; ++i)
  92     v2.push_back(std::vector<int,int_alloc_type>(1, A2[i]));
  93   for (unsigned int i = 0; i < N3; ++i)
  94     v3.push_back(std::vector<int,int_alloc_type>(1, A3[i]));
  95   for (unsigned int i = 0; i < N4; ++i)
  96     v4.push_back(std::vector<int,int_alloc_type>(1, A4[i]));
  97   for (unsigned int i = 0; i < N5; ++i)
  98     v5.push_back(std::vector<int,int_alloc_type>(1, A5[i]));
  99
 100   iterator_type it1 = v.erase(v.begin() + 1);
 101   VERIFY( it1 == v.begin() + 1 );
 102   VERIFY( v.size() == N1 );
 103   VERIFY( std::equal(v.begin(), v.end(), v1.begin()) );
 104
 105   iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
 106   VERIFY( it2 == v.begin() + 4 );
 107   VERIFY( v.size() == N2 );
 108   VERIFY( std::equal(v.begin(), v.end(), v2.begin()) );
 109
 110   iterator_type it3 = v.erase(v.begin() + 6, v.end());
 111   VERIFY( it3 == v.begin() + 6 );
 112   VERIFY( v.size() == N3 );
 113   VERIFY( std::equal(v.begin(), v.end(), v3.begin()) );
 114
 115   iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
 116   VERIFY( it4 == v.begin() );
 117   VERIFY( v.size() == N4 );
 118   VERIFY( std::equal(v.begin(), v.end(), v4.begin()) );
 119
 120   iterator_type it5 = v.erase(v.begin() + 2);
 121   VERIFY( it5 == v.begin() + 2 );
 122   VERIFY( v.size() == N5 );
 123   VERIFY( std::equal(v.begin(), v.end(), v5.begin()) );
 124
 125   iterator_type it6 = v.erase(v.begin(), v.end());
 126   VERIFY( it6 == v.begin() );
 127   VERIFY( v.empty() );
 128 }
 129
 130 int main()
 131 {
 132   test01();
 133   test02();
 134   return 0;
 135 }