libstdc++-v3/testsuite/21_strings/basic_string/modifiers/assign/char/2.cc

   1 // 2001-10-30 Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001-2022 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 string modifiers
  21
  22 #include <string>
  23 #include <cstdio>
  24 #include <testsuite_hooks.h>
  25
  26 // assign(const basic_string& __str, size_type __pos, size_type __n)
  27 void
  28 test02()
  29 {
  30   using namespace std;
  31
  32   string one = "Selling England by the pound";
  33   string two = one;
  34   string three = "Brilliant trees";
  35
  36   one.assign(one, 8, 100);
  37   VERIFY( one == "England by the pound" );
  38
  39   one.assign(one, 8, 0);
  40   VERIFY( one == "" );
  41
  42   one.assign(two, 8, 7);
  43   VERIFY( one == "England" );
  44
  45   one.assign(three, 10, 100);
  46   VERIFY( one == "trees" );
  47
  48   three.assign(one, 0, 3);
  49   VERIFY( three == "tre" );
  50 }
  51
  52 int main()
  53 {
  54   test02();
  55   return 0;
  56 }