libstdc++-v3/testsuite/21_strings/basic_string/modifiers/insert/char/3.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;
  31   str2.insert(0, str1);
  32   VERIFY (str2 == str1);
  33   str2.insert(3, str1);
  34   VERIFY (str2 == "foofoo");
  35   std::string str4{str1};
  36   str4.insert(3, str1, 1, 2);
  37   VERIFY (str4 == "foooo");
  38   str4.insert(5, str1, 1, 2);
  39   VERIFY (str4 == "foooooo");
  40 }
  41
  42 // PR libstdc++/77264
  43 void
  44 test04()
  45 {
  46   bool test __attribute__((unused)) = true;
  47
  48   std::string str("a");
  49   char c = 'b';
  50   str.insert(0, &c, 1);
  51   VERIFY (str[0] == c);
  52
  53   char arr[] = "c";
  54   str.insert(0, arr, 1);
  55   VERIFY (str[0] == arr[0]);
  56
  57   const char carr[] = "d";
  58   str.insert(0, carr, 1);
  59   VERIFY (str[0] == carr[0]);
  60
  61   struct S {
  62     operator char*() { return &c; }
  63     operator std::string_view() { return "!"; }
  64     char c = 'e';
  65   };
  66
  67   str.insert(0, S{}, 1);
  68   VERIFY (str[0] == S{}.c);
  69 }
  70
  71 int main()
  72 {
  73   test03();
  74   test04();
  75   return 0;
  76 }