libcxxabi/test/catch_function_01.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // Can you have a catch clause of array type that catches anything?
  10
  11 // GCC incorrectly allows function pointer to be caught by reference.
  12 // See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69372
  13 // XFAIL: gcc
  14 // UNSUPPORTED: no-exceptions
  15
  16 // 65ace9daa360 made it in the dylib in macOS 10.11
  17 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10}}
  18
  19 #include <cassert>
  20
  21 template <class Tp>
  22 bool can_convert(Tp) { return true; }
  23
  24 template <class>
  25 bool can_convert(...) { return false; }
  26
  27 void f() {}
  28
  29 int main(int, char**)
  30 {
  31     typedef void Function();
  32     assert(!can_convert<Function&>(&f));
  33     assert(!can_convert<void*>(&f));
  34     try
  35     {
  36         throw f;     // converts to void (*)()
  37         assert(false);
  38     }
  39     catch (Function& b)  // can't catch void (*)()
  40     {
  41         assert(false);
  42     }
  43     catch (void*) // can't catch as void*
  44     {
  45         assert(false);
  46     }
  47     catch(Function*)
  48     {
  49     }
  50     catch (...)
  51     {
  52         assert(false);
  53     }
  54
  55     return 0;
  56 }