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From: "antoshkka at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/103745] New: Warn on throwing an exception not derived from
 std::exception
Date: Thu, 16 Dec 2021 08:56:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103745

            Bug ID: 103745
           Summary: Warn on throwing an exception not derived from
                    std::exception
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: antoshkka at gmail dot com
  Target Milestone: ---

Throwing an exception that is derived from std::exception is a common pract=
ice.
Cases when that practice should be skipped are very rare. However, many
beginners do not know about that and erroneously do not derive their except=
ions
from std::exception. There are also cases when classes have close names and
users throw the wrong type by a typo.

Please add a warning about throwing an exception not derived from
std::exception.

Godbolt playground: https://godbolt.org/z/7Phf3nafW=