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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <list>
     11 
     12 // iterator erase(const_iterator position);
     13 
     14 #include <list>
     15 #include <cassert>
     16 
     17 #include "min_allocator.h"
     18 
     19 int main()
     20 {
     21     {
     22     int a1[] = {1, 2, 3};
     23     std::list<int> l1(a1, a1+3);
     24     std::list<int>::const_iterator i = l1.begin();
     25     ++i;
     26     std::list<int>::iterator j = l1.erase(i);
     27     assert(l1.size() == 2);
     28     assert(distance(l1.begin(), l1.end()) == 2);
     29     assert(*j == 3);
     30     assert(*l1.begin() == 1);
     31     assert(*next(l1.begin()) == 3);
     32     j = l1.erase(j);
     33     assert(j == l1.end());
     34     assert(l1.size() == 1);
     35     assert(distance(l1.begin(), l1.end()) == 1);
     36     assert(*l1.begin() == 1);
     37     j = l1.erase(l1.begin());
     38     assert(j == l1.end());
     39     assert(l1.size() == 0);
     40     assert(distance(l1.begin(), l1.end()) == 0);
     41     }
     42 #if __cplusplus >= 201103L
     43     {
     44     int a1[] = {1, 2, 3};
     45     std::list<int, min_allocator<int>> l1(a1, a1+3);
     46     std::list<int, min_allocator<int>>::const_iterator i = l1.begin();
     47     ++i;
     48     std::list<int, min_allocator<int>>::iterator j = l1.erase(i);
     49     assert(l1.size() == 2);
     50     assert(distance(l1.begin(), l1.end()) == 2);
     51     assert(*j == 3);
     52     assert(*l1.begin() == 1);
     53     assert(*next(l1.begin()) == 3);
     54     j = l1.erase(j);
     55     assert(j == l1.end());
     56     assert(l1.size() == 1);
     57     assert(distance(l1.begin(), l1.end()) == 1);
     58     assert(*l1.begin() == 1);
     59     j = l1.erase(l1.begin());
     60     assert(j == l1.end());
     61     assert(l1.size() == 0);
     62     assert(distance(l1.begin(), l1.end()) == 0);
     63     }
     64 #endif
     65 }
     66