ceph/src/boost/libs/throw_exception/test/throw_with_location_test2.cpp

   1 // Copyright 2022 Peter Dimov
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // https://www.boost.org/LICENSE_1_0.txt
   4
   5 #include <boost/throw_exception.hpp>
   6 #include <boost/core/lightweight_test.hpp>
   7
   8 #if defined(_MSC_VER)
   9 # pragma warning(disable: 4702) // unreachable code
  10 #endif
  11
  12 class my_exception: public std::exception
  13 {
  14 };
  15
  16 int main()
  17 {
  18     try
  19     {
  20         boost::throw_with_location( my_exception() );
  21
  22         BOOST_ERROR( "boost::throw_with_location failed to throw" );
  23     }
  24     catch( std::exception const & x )
  25     {
  26         boost::source_location loc = boost::get_throw_location( x );
  27
  28         // When not supplied explicitly, the source location is best effort.
  29         // It should be the location of the throw_with_location call on
  30         // recent compilers, but that's not guaranteed for every compiler.
  31         // So we can't be more specific in testing it.
  32
  33         BOOST_TEST_CSTR_NE( loc.file_name(), "" );
  34         BOOST_TEST_NE( loc.line(), 0u );
  35     }
  36     catch( ... )
  37     {
  38         BOOST_ERROR( "boost::throw_with_location failed to throw std::exception" );
  39     }
  40
  41     boost::source_location location = BOOST_CURRENT_LOCATION;
  42
  43     try
  44     {
  45         boost::throw_with_location( my_exception(), location );
  46
  47         BOOST_ERROR( "boost::throw_with_location failed to throw" );
  48     }
  49     catch( std::exception const & x )
  50     {
  51         boost::source_location loc = boost::get_throw_location( x );
  52
  53         BOOST_TEST_CSTR_EQ( loc.file_name(), location.file_name() );
  54         BOOST_TEST_CSTR_EQ( loc.function_name(), location.function_name() );
  55         BOOST_TEST_EQ( loc.line(), location.line() );
  56         BOOST_TEST_EQ( loc.column(), location.column() );
  57     }
  58     catch( ... )
  59     {
  60         BOOST_ERROR( "boost::throw_with_location failed to throw std::exception" );
  61     }
  62
  63     return boost::report_errors();
  64 }