Surprising behavior of catch of a pointer by reference

Asked Dec 04 '19 at 09:04

Active Dec 05 '19 at 14:32

Viewed 66 times

It is bad practive to throw non-exception objects. That being said, when I run the following code, I would have expected to see the "got it ! " messsage, but do not.

const char* hello = "hello";
try {
  throw hello;
}
catch (const char*& e) {
  std::cout << "got it ! " << std::endl;
}
catch (...) {
  std::cout << "got something..." << std::endl;
}

Removing & will fix the example, but what is going on here ?

Is this a bug in MSVC ?

edited Dec 05 '19 at 14:32

asked Dec 04 '19 at 09:04

darune

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Cannot reproduce http://coliru.stacked-crooked.com/a/629db27eb8144640 - both GCC and Clang pring "got it" – StoryTeller - Unslander Monica Dec 04 '19 at 09:08
1

@StoryTeller-UnslanderMonica I believe OP might be using VC++ https://rextester.com/live/AMEQ10445 – Manthan Tilva Dec 04 '19 at 09:45
You should check this https://stackoverflow.com/questions/2023032/catch-exception-by-pointer-in-c – Manthan Tilva Dec 04 '19 at 09:49
If you throw directly `"hello"` instead of the variable, it will fix the example for VC++. – Fareanor Dec 04 '19 at 10:24
Are you saying its a bug then ? – darune Dec 05 '19 at 14:32

Surprising behavior of catch of a pointer by reference

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