Re: wineport: Add support for ctz().

[Alexandre Julliard]

Adam Martinson <amartinson(a)codeweavers.com> writes:
> @@ -239,6 +243,19 @@ extern int getopt_long_only (int ___argc, char *const *___argv,
>  int ffs( int x );
>  #endif
>
> +#if defined(__GNUC__) && (GCC_VERSION >= 30406)
> +    #define ctz(x) __builtin_ctz(x)
> +#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
> +    static inline int ctz( unsigned int x )
> +    {
> +        int ret;
> +        __asm__("bsfl %1, %0" : "=r" (ret) : "r" (x));
> +        return ret;
> +    }
> +#else
> +    #define ctz(x) (ffs(x)-1)
> +#endif

There's no reason to add this. Just use ffs().

-- 
Alexandre Julliard
julliard(a)winehq.org