[llvm-bugs] [Bug 47903] Possible bug in std::sort

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47903

Marshall Clow (home) <mclow.lists at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Marshall Clow (home) <mclow.lists at gmail.com> ---
Sorry, not a bug.

Your predicate:

    const auto cmp = [](const std::string &s1, const std::string &s2) {
        bool isLess = s1 < s2;
        isLess = !isLess;
        return isLess;
    };

does not impose a strict weak ordering on the data.
In particular, it returns true when comparing a string to itself.

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