[Spice-devel] [spice-common 01/14] quic: Use #define rather than static const int

Frediano Ziglio fziglio at redhat.com
Sat Jul 22 08:25:59 UTC 2017


> 
> quic.c is checking at compile-time that 'evol' is 1, 3 or 5. This is a
> constant, so a static check should be good, but my compiler (gcc 7.1.1)
> is unable to know 'evol' value at compile-time. Since the removal of
> spice_static_assert in favour of SPICE_VERIFY, this causes a
> compile-time failure.
> ---
>  common/quic.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/common/quic.c b/common/quic.c
> index c188ed2..b7d8347 100644
> --- a/common/quic.c
> +++ b/common/quic.c
> @@ -179,7 +179,7 @@ static const int wmimax = DEFwmimax;
>  static const int wminext = DEFwminext;
>  
>  /* model evolution mode */
> -static const int evol = DEFevol;
> +#define evol DEFevol
>  
>  /* bppmask[i] contains i ones as lsb-s */
>  static const unsigned long int bppmask[33] = {

Why not using directly DEFevol ?

Frediano


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