[Python-ideas] A macro for easier rich comparisons

[Andrew Barnert]

On Mar 20, 2015, at 7:24 AM, Petr Viktorin <encukou at gmail.com> wrote:
> 
> A sequence of comparisons is less efficient than a switch statement.
> Same with PyBool_FromLong vs. Py_RETURN_*
> Also, it might be too complex for a macro.
> These points could be solved by making it a function instead.

Or by just making the macro a statement instead of a function; then the code can be exactly the same code you're abstracting out, and instead of using it like this:

     return PY_RICHCOMPARE(mytype_get_data(obj1), mytype_get_data(obj2), op);

... you use it like this:

    PY_RETURNRICHCOMPARE(mytype_get_data(obj1), mytype_get_data(obj2), op);