system_exception.cpp

Shows how to use system_exception exception.

#include <xtd/console>
#include <xtd/guid>
 
using namespace xtd;
 
long create_handle() {
  return reinterpret_cast<long>(new guid());
}
 
void destroy_handle(long handle) {
  if (handle == 0) throw system_exception("The handle is null");
  delete reinterpret_cast<object*>(handle);
}
 
auto main() -> int {
  try {
    auto handle = 0l;
    // The following line is commented out so that the exception is generated.
    //handle = create_handle();
    
    destroy_handle(handle);
  } catch (const system_exception& e) {
    console::write_line("Exception occured :");
    console::write_line("-------------------");
    console::write_line(e);
  }
}
 
// This code can produce the following output :
//
// Exception occured :
// -------------------
// xtd::system_exception : The handle is null
//    at destroy_handle(long) [0x00004B20] in /|---OMITTED---|/system_exception/src/system_exception.cpp:line 10
//    at main [0x00004DD0] in /|---OMITTED---|/system_exception/Debug/system_exception:line 0