libcxx/test/std/containers/sequences/list/list.modifiers/pop_front.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 // <list>
  10
  11 // void pop_front();
  12
  13 #include <list>
  14 #include <cassert>
  15
  16 #include "test_macros.h"
  17 #include "min_allocator.h"
  18
  19 int main(int, char**)
  20 {
  21     {
  22     int a[] = {1, 2, 3};
  23     std::list<int> c(a, a+3);
  24     c.pop_front();
  25     assert(c == std::list<int>(a+1, a+3));
  26     c.pop_front();
  27     assert(c == std::list<int>(a+2, a+3));
  28     c.pop_front();
  29     assert(c.empty());
  30     }
  31 #if TEST_STD_VER >= 11
  32     {
  33     int a[] = {1, 2, 3};
  34     std::list<int, min_allocator<int>> c(a, a+3);
  35     c.pop_front();
  36     assert((c == std::list<int, min_allocator<int>>(a+1, a+3)));
  37     c.pop_front();
  38     assert((c == std::list<int, min_allocator<int>>(a+2, a+3)));
  39     c.pop_front();
  40     assert(c.empty());
  41     }
  42 #endif
  43
  44   return 0;
  45 }