libcxx/test/std/containers/sequences/vector.bool/iterators.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <vector>
  10
  11 // iterator       begin();
  12 // iterator       end();
  13 // const_iterator begin()  const;
  14 // const_iterator end()    const;
  15 // const_iterator cbegin() const;
  16 // const_iterator cend()   const;
  17
  18 #include <vector>
  19 #include <cassert>
  20 #include <iterator>
  21
  22 #include "test_macros.h"
  23 #include "min_allocator.h"
  24
  25 int main(int, char**)
  26 {
  27     {
  28         typedef bool T;
  29         typedef std::vector<T> C;
  30         C c;
  31         C::iterator i = c.begin();
  32         C::iterator j = c.end();
  33         assert(std::distance(i, j) == 0);
  34         assert(i == j);
  35     }
  36     {
  37         typedef bool T;
  38         typedef std::vector<T> C;
  39         const C c;
  40         C::const_iterator i = c.begin();
  41         C::const_iterator j = c.end();
  42         assert(std::distance(i, j) == 0);
  43         assert(i == j);
  44     }
  45     {
  46         typedef bool T;
  47         typedef std::vector<T> C;
  48         C c;
  49         C::const_iterator i = c.cbegin();
  50         C::const_iterator j = c.cend();
  51         assert(std::distance(i, j) == 0);
  52         assert(i == j);
  53         assert(i == c.end());
  54     }
  55     {
  56         typedef bool T;
  57         typedef std::vector<T> C;
  58         C::iterator i;
  59         C::const_iterator j;
  60     }
  61 #if TEST_STD_VER >= 11
  62     {
  63         typedef bool T;
  64         typedef std::vector<T, min_allocator<T>> C;
  65         C c;
  66         C::iterator i = c.begin();
  67         C::iterator j = c.end();
  68         assert(std::distance(i, j) == 0);
  69         assert(i == j);
  70     }
  71     {
  72         typedef bool T;
  73         typedef std::vector<T, min_allocator<T>> C;
  74         const C c;
  75         C::const_iterator i = c.begin();
  76         C::const_iterator j = c.end();
  77         assert(std::distance(i, j) == 0);
  78         assert(i == j);
  79     }
  80     {
  81         typedef bool T;
  82         typedef std::vector<T, min_allocator<T>> C;
  83         C c;
  84         C::const_iterator i = c.cbegin();
  85         C::const_iterator j = c.cend();
  86         assert(std::distance(i, j) == 0);
  87         assert(i == j);
  88         assert(i == c.end());
  89     }
  90     {
  91         typedef bool T;
  92         typedef std::vector<T, min_allocator<T>> C;
  93         C::iterator i;
  94         C::const_iterator j;
  95     }
  96 #endif
  97 #if TEST_STD_VER > 11
  98     { // N3644 testing
  99         std::vector<bool>::iterator ii1{}, ii2{};
 100         std::vector<bool>::iterator ii4 = ii1;
 101         std::vector<bool>::const_iterator cii{};
 102         assert ( ii1 == ii2 );
 103         assert ( ii1 == ii4 );
 104
 105         assert (!(ii1 != ii2 ));
 106
 107         assert ( (ii1 == cii ));
 108         assert ( (cii == ii1 ));
 109         assert (!(ii1 != cii ));
 110         assert (!(cii != ii1 ));
 111         assert (!(ii1 <  cii ));
 112         assert (!(cii <  ii1 ));
 113         assert ( (ii1 <= cii ));
 114         assert ( (cii <= ii1 ));
 115         assert (!(ii1 >  cii ));
 116         assert (!(cii >  ii1 ));
 117         assert ( (ii1 >= cii ));
 118         assert ( (cii >= ii1 ));
 119         assert (cii - ii1 == 0);
 120         assert (ii1 - cii == 0);
 121     }
 122 #endif
 123
 124   return 0;
 125 }