compilerplugins/clang/test/rangedforcopy.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 <vector>
  11 #include <rtl/ustring.hxx>
  12 #include <svl/typedwhich.hxx>
  13
  14 struct S
  15 {
  16     int i1;
  17     int i2;
  18 };
  19
  20 void f(S const (&a)[2])
  21 {
  22     // expected-error-re@+1 {{Loop variable passed by value, pass by reference instead, e.g. 'const {{(struct )?}}S&' [loplugin:rangedforcopy]}}
  23     for (auto i : a)
  24     {
  25         (void)i;
  26     }
  27     for (auto[i1, i2] : a)
  28     {
  29         (void)i1;
  30         (void)i2;
  31     }
  32 }
  33
  34 void f(std::vector<bool> const& v)
  35 {
  36     for (auto b : v)
  37     {
  38         (void)b;
  39     }
  40 }
  41
  42 // no warning expected
  43 class SvxFontItem;
  44 constexpr TypedWhichId<SvxFontItem> EE_CHAR_FONTINFO1(12);
  45 constexpr TypedWhichId<SvxFontItem> EE_CHAR_FONTINFO2(13);
  46 void f2()
  47 {
  48     for (auto nWhich : { EE_CHAR_FONTINFO1, EE_CHAR_FONTINFO2 })
  49         (void)nWhich;
  50 }
  51
  52 // no warning expected
  53 void f3()
  54 {
  55     for (rtl::OUStringChar c : { 'a', 'b' })
  56         (void)c;
  57 }
  58
  59 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */