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From: "dmalcolm at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug analyzer/107106] Incorrect use of uninitialized value warning
Date: Fri, 30 Sep 2022 23:48:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107106

David Malcolm <dmalcolm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-09-30
             Blocks|                            |97110

--- Comment #1 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Thanks for filing this bug; confirmed.

Note that the simpler:

std::string square(int num) {
    return std::to_string(num);
}

also gives the warning.

Note that I recommend *not* using -fanalyzer on C++ code for now; see track=
er
bug 97110.  I'm guessing the issue is due to -fanalyzer failing to cope with
exceptions and exception-handling (bug 97111).  In the meantime, this is a =
test
case that we'll eventually want to get working, so keeping open.


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97110
[Bug 97110] [meta-bug] tracker bug for supporting C++ in -fanalyzer=