libstdc++-v3/testsuite/21_strings/basic_string/allocator/char/copy.cc

   1 // Copyright (C) 2015-2022 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19 // COW strings don't support C++11 allocator propagation:
  20 // { dg-require-effective-target cxx11_abi }
  21
  22 #include <string>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_allocator.h>
  25
  26 using C = char;
  27 const C c = 'a';
  28 using traits = std::char_traits<C>;
  29
  30 using __gnu_test::propagating_allocator;
  31
  32 void test01()
  33 {
  34   typedef propagating_allocator<C, false> alloc_type;
  35   typedef std::basic_string<C, traits, alloc_type> test_type;
  36   test_type v1(alloc_type(1));
  37
  38   v1.assign(1, c);
  39   test_type v2(v1);
  40   VERIFY(1 == v1.get_allocator().get_personality());
  41   VERIFY(0 == v2.get_allocator().get_personality());
  42
  43   v1.assign(100, c);
  44   test_type v3(v1);
  45   VERIFY(1 == v1.get_allocator().get_personality());
  46   VERIFY(0 == v3.get_allocator().get_personality());
  47 }
  48
  49 void test02()
  50 {
  51   typedef propagating_allocator<C, true> alloc_type;
  52   typedef std::basic_string<C, traits, alloc_type> test_type;
  53   test_type v1(alloc_type(1));
  54
  55   v1.assign(1, c);
  56   test_type v2(v1);
  57   VERIFY(1 == v1.get_allocator().get_personality());
  58   VERIFY(1 == v2.get_allocator().get_personality());
  59
  60   v1.assign(100, c);
  61   test_type v3(v1);
  62   VERIFY(1 == v1.get_allocator().get_personality());
  63   VERIFY(1 == v3.get_allocator().get_personality());
  64 }
  65
  66 void test03()
  67 {
  68   typedef propagating_allocator<C, true> alloc_type;
  69   typedef std::basic_string<C, traits, alloc_type> test_type;
  70   test_type v1(alloc_type(1));
  71
  72   v1.assign(1, c);
  73   test_type v2(v1, alloc_type(2));
  74   VERIFY(1 == v1.get_allocator().get_personality());
  75   VERIFY(2 == v2.get_allocator().get_personality());
  76
  77   v1.assign(100, c);
  78   test_type v3(v1, alloc_type(3));
  79   VERIFY(1 == v1.get_allocator().get_personality());
  80   VERIFY(3 == v3.get_allocator().get_personality());
  81 }
  82
  83 int main()
  84 {
  85   test01();
  86   test02();
  87   test03();
  88   return 0;
  89 }