False positive: functionConst with overloaded operator++

[CHR]

struct Foo
{
    int i{};
    Foo& operator ++() { ++i; return *this; } // prefix
    Foo operator ++(int) { Foo f = *this; ++(*this); return f; } // postfix
};

Calling v2.3 with "c:\Program Files\Cppcheck\cppcheck.exe" --enable=all --inconclusive foo.cpp results in

foo.cpp:5:6: style:inconclusive: Technically the member function 'Foo::operator++' can be const. [functionConst]
 Foo operator ++(int) { Foo f = *this; ++(*this); return f; } // postfix
     ^

Apparently, the call to the non-const prefix operator++ is not recognized.

[Daniel Marjamäki]

Thanks! I can reproduce. I have created https://trac.cppcheck.net/ticket/10077