Re: [Tinycc-devel] [patch] ignore qualifiers when comparing function parameters

[Fabrice Bellard]

Hi,

I already made a fix in the CVS. It is different from yours as 'const' 
and 'volatile' are simply suppressed from the function prototype (they 
have a meaning only inside the function).

Fabrice.

Dave Dodge wrote:
> I have lots of code that results in constructs like this:
>
>   extern void foo(int);
>   void foo(int const x) { /* do something */ }
>
> gcc and icc have no problem with this even in their strictest
> settings, and I'm pretty sure I've used it with other compilers over
> the years.  tcc 0.9.21 however rejects it because it sees "int" as not
> being compatible with "int const".
>
> According to N869 6.7.5.3 #11:
>   [...]
>   (In the determination of type compatibility and of a composite type,
>   each parameter declared with function or array type is taken as
>   having the adjusted type and each parameter declared with qualified
>   type is taken as having the unqualified version of its declared
>   type.)
>
> The way I read this, qualifiers are supposed to be ignored when comparing
> function parameters for compatibility.  The following patch implements
> this for tcc.
>                                                   -Dave Dodge
>
> [...]