[Bug middle-end/68336] False positive Wreturn-type warning

[s-beyer at gmx dot net]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68336

Stephan Beyer <s-beyer at gmx dot net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |s-beyer at gmx dot net

--- Comment #3 from Stephan Beyer <s-beyer at gmx dot net> ---
Hi,

these false-positives still occur in g++ 6.3.0

I am mentioning this because I want to add another test case:

$ cat foo.cc 
enum class Test {
        first,
        second
};

int return_warning(Test foo) {
        switch (foo) {
        case Test::first:
                return 23;
        case Test::second:
                return 42;
        }
}
$ g++-6 -std=c++11 -Wreturn-type -c foo.cc
foo.cc: In function ‘int return_warning(Test)’:
foo.cc:13:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
$ g++-6 --version
g++-6 (Debian 6.3.0-2) 6.3.0 20161229
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


This is directly related to #60725. Note the difference that an
"enum class" is used here instead of an unscoped "enum". I however do not
think that this actually makes a difference in C++. ("enum Test foo = 3"
is valid in C but not in C++, right?)

Regards
  Stephan