libcxx/test/std/containers/sequences/vector.bool/reserve.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 // vector<bool>
  11
  12 // void reserve(size_type n);
  13
  14 #include <vector>
  15 #include <cassert>
  16
  17 #include "test_macros.h"
  18 #include "min_allocator.h"
  19
  20 int main(int, char**)
  21 {
  22     {
  23         std::vector<bool> v;
  24         v.reserve(10);
  25         assert(v.capacity() >= 10);
  26     }
  27     {
  28         std::vector<bool> v(100);
  29         assert(v.capacity() >= 100);
  30         v.reserve(50);
  31         assert(v.size() == 100);
  32         assert(v.capacity() >= 100);
  33         v.reserve(150);
  34         assert(v.size() == 100);
  35         assert(v.capacity() >= 150);
  36     }
  37 #if TEST_STD_VER >= 11
  38     {
  39         std::vector<bool, min_allocator<bool>> v;
  40         v.reserve(10);
  41         assert(v.capacity() >= 10);
  42     }
  43     {
  44         std::vector<bool, min_allocator<bool>> v(100);
  45         assert(v.capacity() >= 100);
  46         v.reserve(50);
  47         assert(v.size() == 100);
  48         assert(v.capacity() >= 100);
  49         v.reserve(150);
  50         assert(v.size() == 100);
  51         assert(v.capacity() >= 150);
  52     }
  53 #endif
  54
  55   return 0;
  56 }