Duy Nguyen <pclo...@gmail.com> writes:

>> The disadvantage, of course, would be that other call sites would not
>> benefit from a manual auditing whether the argument has side effects (and
>> thus, whether a macro using the argument multiple times would result in
>> very unexpected multiple side effects).
>
> That's just a better reason to "fix" it in compat/. If you define a
> git_fileno() function and map fileno to it, then you won't have to
> deal with side effects of FreeBSD's fileno() macro. All evaluation
> happens before git_fileno() is called.

Hmph, so the idea is to have

        /* do not include git-compat-util.h here */
        int wrapped_fileno(FILE *f)
        {
                return fileno(f);
        }

in compat/fileno.c and then do something like this

        #ifdef fileno
        #undef fileno
        #define fileno(x) wrapped_fileno(x)
        #endif

for FreeBSD in git-compat-util.h or something like that?

I think I can buy that.

Reply via email to