libstdc++-v3/testsuite/21_strings/basic_string/modifiers/insert/wchar_t/2.cc

   1 // 1999-06-03 bkoz
   2
   3 // Copyright (C) 1999-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 21.3.5.4 basic_string::insert
  21
  22 #include <string>
  23 #include <testsuite_hooks.h>
  24
  25 // More
  26 //   wstring& insert(size_type __p, const wchar_t* s, size_type n);
  27 //   wstring& insert(size_type __p, const wchar_t* s);
  28 // but now s points inside the _Rep
  29 void test02(void)
  30 {
  31   std::wstring str01;
  32   const wchar_t* title = L"Everything was beautiful, and nothing hurt";
  33   // Increasing size: str01 is reallocated every time.
  34   str01 = title;
  35   str01.insert(0, str01.c_str() + str01.size() - 4, 4);
  36   VERIFY( str01 == L"hurtEverything was beautiful, and nothing hurt" );
  37   str01 = title;
  38   str01.insert(0, str01.c_str(), 5);
  39   VERIFY( str01 == L"EveryEverything was beautiful, and nothing hurt" );
  40   str01 = title;
  41   str01.insert(10, str01.c_str() + 4, 6);
  42   VERIFY( str01 == L"Everythingything was beautiful, and nothing hurt" );
  43   str01 = title;
  44   str01.insert(15, str01.c_str(), 10);
  45   VERIFY( str01 == L"Everything was Everythingbeautiful, and nothing hurt" );
  46   str01 = title;
  47   str01.insert(15, str01.c_str() + 11, 13);
  48   VERIFY( str01 == L"Everything was was beautifulbeautiful, and nothing hurt" );
  49   str01 = title;
  50   str01.insert(0, str01.c_str());
  51   VERIFY( str01 == L"Everything was beautiful, and nothing hurt"
  52           L"Everything was beautiful, and nothing hurt");
  53   // Again: no reallocations.
  54   str01 = title;
  55   str01.insert(0, str01.c_str() + str01.size() - 4, 4);
  56   VERIFY( str01 == L"hurtEverything was beautiful, and nothing hurt" );
  57   str01 = title;
  58   str01.insert(0, str01.c_str(), 5);
  59   VERIFY( str01 == L"EveryEverything was beautiful, and nothing hurt" );
  60   str01 = title;
  61   str01.insert(10, str01.c_str() + 4, 6);
  62   VERIFY( str01 == L"Everythingything was beautiful, and nothing hurt" );
  63   str01 = title;
  64   str01.insert(15, str01.c_str(), 10);
  65   VERIFY( str01 == L"Everything was Everythingbeautiful, and nothing hurt" );
  66   str01 = title;
  67   str01.insert(15, str01.c_str() + 11, 13);
  68   VERIFY( str01 == L"Everything was was beautifulbeautiful, and nothing hurt" );
  69   str01 = title;
  70   str01.insert(0, str01.c_str());
  71   VERIFY( str01 == L"Everything was beautiful, and nothing hurt"
  72           L"Everything was beautiful, and nothing hurt");
  73 }
  74
  75 int main()
  76 {
  77   test02();
  78   return 0;
  79 }