libstdc++-v3/testsuite/23_containers/vector/modifiers/erase/1.cc

   1 // 2005-11-02  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2005-2023 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 23.2.4.3 vector modifiers
  21
  22 #include <vector>
  23 #include <testsuite_hooks.h>
  24
  25 const int  A[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
  26 const int A1[] = {0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
  27 const int A2[] = {0, 2, 3, 4, 10, 11, 12, 13, 14, 15};
  28 const int A3[] = {0, 2, 3, 4, 10, 11};
  29 const int A4[] = {4, 10, 11};
  30 const int A5[] = {4, 10};
  31 const unsigned int  N = sizeof(A)  / sizeof(int);
  32 const unsigned int N1 = sizeof(A1) / sizeof(int);
  33 const unsigned int N2 = sizeof(A2) / sizeof(int);
  34 const unsigned int N3 = sizeof(A3) / sizeof(int);
  35 const unsigned int N4 = sizeof(A4) / sizeof(int);
  36 const unsigned int N5 = sizeof(A5) / sizeof(int);
  37
  38 void
  39 test01()
  40 {
  41   typedef std::vector<int>   vec_type;
  42   typedef vec_type::iterator iterator_type;
  43
  44   vec_type v(A, A + N);
  45
  46   iterator_type it1 = v.erase(v.begin() + 1);
  47   VERIFY( it1 == v.begin() + 1 );
  48   VERIFY( v.size() == N1 );
  49   VERIFY( std::equal(v.begin(), v.end(), A1) );
  50
  51   iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
  52   VERIFY( it2 == v.begin() + 4 );
  53   VERIFY( v.size() == N2 );
  54   VERIFY( std::equal(v.begin(), v.end(), A2) );
  55
  56   iterator_type it3 = v.erase(v.begin() + 6, v.end());
  57   VERIFY( it3 == v.begin() + 6 );
  58   VERIFY( v.size() == N3 );
  59   VERIFY( std::equal(v.begin(), v.end(), A3) );
  60
  61   iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
  62   VERIFY( it4 == v.begin() );
  63   VERIFY( v.size() == N4 );
  64   VERIFY( std::equal(v.begin(), v.end(), A4) );
  65
  66   iterator_type it5 = v.erase(v.begin() + 2);
  67   VERIFY( it5 == v.begin() + 2 );
  68   VERIFY( v.size() == N5 );
  69   VERIFY( std::equal(v.begin(), v.end(), A5) );
  70
  71   iterator_type it6 = v.erase(v.begin(), v.end());
  72   VERIFY( it6 == v.begin() );
  73   VERIFY( v.empty() );
  74 }
  75
  76 void
  77 test02()
  78 {
  79   typedef std::vector<std::vector<int> >   vec_type;
  80   typedef vec_type::iterator          iterator_type;
  81
  82   vec_type v, v1, v2, v3, v4, v5;
  83   for (unsigned int i = 0; i < N; ++i)
  84     v.push_back(std::vector<int>(1, A[i]));
  85   for (unsigned int i = 0; i < N1; ++i)
  86     v1.push_back(std::vector<int>(1, A1[i]));
  87   for (unsigned int i = 0; i < N2; ++i)
  88     v2.push_back(std::vector<int>(1, A2[i]));
  89   for (unsigned int i = 0; i < N3; ++i)
  90     v3.push_back(std::vector<int>(1, A3[i]));
  91   for (unsigned int i = 0; i < N4; ++i)
  92     v4.push_back(std::vector<int>(1, A4[i]));
  93   for (unsigned int i = 0; i < N5; ++i)
  94     v5.push_back(std::vector<int>(1, A5[i]));
  95
  96   iterator_type it1 = v.erase(v.begin() + 1);
  97   VERIFY( it1 == v.begin() + 1 );
  98   VERIFY( v.size() == N1 );
  99   VERIFY( std::equal(v.begin(), v.end(), v1.begin()) );
 100
 101   iterator_type it2 = v.erase(v.begin() + 4, v.begin() + 9);
 102   VERIFY( it2 == v.begin() + 4 );
 103   VERIFY( v.size() == N2 );
 104   VERIFY( std::equal(v.begin(), v.end(), v2.begin()) );
 105
 106   iterator_type it3 = v.erase(v.begin() + 6, v.end());
 107   VERIFY( it3 == v.begin() + 6 );
 108   VERIFY( v.size() == N3 );
 109   VERIFY( std::equal(v.begin(), v.end(), v3.begin()) );
 110
 111   iterator_type it4 = v.erase(v.begin(), v.begin() + 3);
 112   VERIFY( it4 == v.begin() );
 113   VERIFY( v.size() == N4 );
 114   VERIFY( std::equal(v.begin(), v.end(), v4.begin()) );
 115
 116   iterator_type it5 = v.erase(v.begin() + 2);
 117   VERIFY( it5 == v.begin() + 2 );
 118   VERIFY( v.size() == N5 );
 119   VERIFY( std::equal(v.begin(), v.end(), v5.begin()) );
 120
 121   iterator_type it6 = v.erase(v.begin(), v.end());
 122   VERIFY( it6 == v.begin() );
 123   VERIFY( v.empty() );
 124 }
 125
 126 int main()
 127 {
 128   test01();
 129   test02();
 130   return 0;
 131 }