libstdc++-v3/testsuite/21_strings/basic_string/modifiers/replace/char/7.cc

   1 // { dg-options "-std=gnu++17" }
   2
   3 // Copyright (C) 2016 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 // [string.modifiers]
  21
  22 #include <string>
  23 #include <testsuite_hooks.h>
  24
  25 void
  26 test03()
  27 {
  28   bool test __attribute__((unused)) = true;
  29   std::string_view str1("foo");
  30   std::string str2("bar");
  31   str2.replace(0, 3, str1);
  32   VERIFY (str2 == str1);
  33   str2 = "foobar";
  34   str2.replace(3, 3, str1);
  35   VERIFY (str2 == "foofoo");
  36   str2 = "foobar";
  37   str2.replace(3, 3, str1, 0, 3);
  38   VERIFY (str2 == "foofoo");
  39   str2 = "foobar";
  40   str2.replace(3, 1024, str1, 0, 3);
  41   VERIFY (str2 == "foofoo");
  42   str2 = "foobar";
  43   str2.replace(3, 3, str1, 0, 1024);
  44   VERIFY (str2 == "foofoo");
  45   str2 = "foobar";
  46   str2.replace(str2.begin()+3, str2.begin()+6, str1);
  47   VERIFY (str2 == "foofoo");
  48 }
  49
  50 // PR libstdc++/77264
  51 void
  52 test04()
  53 {
  54   bool test __attribute__((unused)) = true;
  55
  56   std::string str("a");
  57   char c = 'b';
  58   str.replace(0, 1, &c, 1);
  59   VERIFY (str[0] == c);
  60
  61   char arr[] = "c";
  62   str.replace(0, 1, arr, 1);
  63   VERIFY (str[0] == arr[0]);
  64
  65   const char carr[] = "d";
  66   str.replace(0, 1, carr, 1);
  67   VERIFY (str[0] == carr[0]);
  68
  69   struct S {
  70     operator char*() { return &c; }
  71     operator std::string_view() { return "!"; }
  72     char c = 'e';
  73   };
  74
  75   str.replace(0, 1, S{}, 1);
  76   VERIFY (str[0] == S{}.c);
  77 }
  78
  79 int main()
  80 {
  81   test03();
  82   test04();
  83   return 0;
  84 }