Re: constify dirname/basename [was: CVS commit: src]

[Neil Booth <neil%daikokuya.co.uk@localhost>]

der Mouse wrote:-

> >>> SUSv3 says that both functions "may modify the string pointed to by
> >>> path" (the argument to those functions).  While our implementations
> >>> don't do that, are we OK by the standards to now declare those
> >>> functions as having a const argument?
> >> I can't see why not.
> > It means user-space code redclaring the function will now get an
> > incompatible redclaration error.
> 
> User code that redeclares the function will get an even more mysterious
> error if it happens to be `defined' as a macro instead (well, for most
> macros).  Isn't the implementation permitted to define most functions
> as macros instead (with real functions available, of course)?

Presumably such user-space code would do it properly with parentheses.

Neil.