compilerplugins/clang/test/cstylecast.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 namespace N
  11 {
  12 enum E
  13 {
  14     E1
  15 };
  16
  17 using T = unsigned int;
  18 }
  19
  20 static const int C
  21     = (int)0; // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  22
  23 int main()
  24 {
  25     constexpr int c1 = 0;
  26     int const c2 = 0;
  27     int n
  28         = (int)0; // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  29     n = (signed int)0; // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  30     n = (int)~0; // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  31     n = (int)-0; // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  32     n = (int)+0; // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  33     n = (int)!0; // expected-error {{C-style cast from 'bool' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  34     n = (int) // expected-error {{C-style cast from 'int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  35         (0 << 0);
  36     n = (int) // expected-error {{C-style cast from 'const int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  37         c1;
  38     n = (int) // expected-error {{C-style cast from 'const int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  39         c2;
  40     n = (int) // expected-error {{C-style cast from 'const int' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  41         C;
  42     n = (int) // expected-error {{C-style cast from 'N::E' to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  43         N::E1;
  44     n = (N::E) // expected-error {{C-style cast from 'N::E' to 'N::E' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  45         N::E1;
  46     n = (enum // expected-error {{C-style cast from 'N::E' to 'enum N::E' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  47          N::E)N::E1;
  48     n = (N::T)0; // expected-error {{C-style cast from 'int' to 'N::T' (aka 'unsigned int') (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  49     n = (int) // expected-error-re {{C-style cast from {{.*}} to 'int' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  50         sizeof(int);
  51     n = (int) // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  52         n;
  53     n = (int)~n; // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  54     n = (int)-n; // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  55     n = (int)+n; // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  56     n = (int)!n; // expected-error {{C-style cast from 'bool' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  57     n = (int) // expected-error {{C-style cast from 'int' to 'int' (performs: static_cast) (NoOp) [loplugin:cstylecast]}}
  58         (0 << n);
  59     n = (double)0; // expected-error {{C-style cast from 'int' to 'double' (performs: functional cast) (NoOp) [loplugin:cstylecast]}}
  60     (void)n;
  61 }
  62
  63 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */