[Python-Dev] Add const to python API - issue 6952

Barry Scott barry at barrys-emacs.org
Mon Oct 19 22:39:06 CEST 2009


Martin v. Löwis suggested that solutions to this issue should be  
discussed here.

My goal is to avoid compiler warning and the need to cast to remove  
const when
calling the python API.

For example I see compiler messages like this on Mac OS X Snow Leopard  
g++ reports:

example.cxx:633: warning: deprecated conversion from string constant  
to ‘char*’

The patch I developed for comment only adds const to the input  
parameters and used casts to
allow output parameters to stay without the const.

This is because adding the const to the input params will not break  
existing code, but
adding const to output parameters may well require code changes for  
users of the Python

What is the best approach to this problem that will be acceptable?


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