compilerplugins/clang/test/stringloop.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include "sal/config.h"
  11 #include "rtl/string.hxx"
  12 #include "rtl/ustring.hxx"
  13
  14 #pragma clang diagnostic ignored "-Wunknown-warning-option" // for Clang < 13
  15 #pragma clang diagnostic ignored "-Wunused-but-set-variable"
  16
  17 struct Foo
  18 {
  19     OUString m_field; // expected-note {{field here [loplugin:stringloop]}}
  20     void func1()
  21     {
  22         for (int i = 0; i < 10; ++i)
  23             m_field += "xxx";
  24         // expected-error@-1 {{appending to OUString in loop, rather use OUStringBuffer [loplugin:stringloop]}}
  25         // no warning expected
  26         m_field += "xxx";
  27     }
  28 };
  29
  30 void func2()
  31 {
  32     OUString s; // expected-note {{var here [loplugin:stringloop]}}
  33     for (int i = 0; i < 10; ++i)
  34         s += "xxx"; // expected-error {{appending to OUString in loop, rather use OUStringBuffer [loplugin:stringloop]}}
  35
  36     // no warning expected
  37     OUString s2;
  38     s2 += "xxx";
  39 }
  40
  41 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */