How to convert byte array to float

[DLangLearner via Digitalmars-d-learn]

On Friday, 17 July 2015 at 18:58:33 UTC, byron wrote:
> On Friday, 17 July 2015 at 18:53:24 UTC, byron wrote:
>> On Friday, 17 July 2015 at 18:43:27 UTC, DLangLearner wrote:
>>> Excuse me for my trivial question, but I'd like to know how 
>>> to convert byte array to float? What I could think of are 
>>> cast(float)(byte[]) and to!float(byte[]) but they do not work 
>>> for me. Thanks!
>>
>> You want to include [] in the cast so:
>>
>>
>>
>> byte[] b = [1, 2, 3, 4]
>> byte[] f = cast(float[])b;
>>
>> writeln(b);
>> writeln(f);
>>
>> You can even cast on a slice:
>>
>> byte[] b = [1, 2, 3, 4, 5, 6, 7, 8]
>> byte[] f = cast(float[])b[4..8];
>
> Ah I miss read, if you want as a float, not a float array you 
> can do:
>
> byte[] b = [1, 2, 3, 4];
> float f = *cast(float*)b.ptr;
>
> not sure if there is a better way

thanks for quick reply, i'll plug above lines into my codes.