Question about ubyte x overflow, any safe way?
Max Haughton
maxhaton at gmail.com
Sun Aug 4 18:15:30 UTC 2019
On Sunday, 4 August 2019 at 18:12:48 UTC, matheus wrote:
> Hi,
>
> The snippet below will produce an "infinite loop" because
> obviously "ubyte u" will overflow after 255:
>
> import std.stdio;
> void main(){
> ubyte u = 250;
> for(;u<256;++u){
> writeln(u);
> }
> }
>
> Question: Is there a way (Flag) to prevent this?
>
> Matheus.
What do you want to do? If you just want to count to 255 then use
a foreach
If you want to prevent overflow you must either use BigInt or
wrap ubyte in a struct that doesn't allow overflow
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