Re: Module namespace for IEEE754 encoder/decoder

I also plan to implement the 80 bit "extended precision" format, which
is not IEEE 754 compatible. Perhaps the best and simplest is
Number::Pack and Number::Unpack?

Peter

tor. 3. jun. 2021 kl. 11:43 skrev Peter John Acklam <[email protected]>:
>
> Hi
>
> I am working on two modules for encoding and decoding numbers as per IEEE754. The pack() function can encode and decode the formats binary32 (single precision) and binary64 (double precision). My module can also handle binary128 (quad precision), binary16 (half precision), bfloat16 (not an IEEE754 format, but it follows the IEEE754 pattern), and a few other formats.
>
> My question is about the namespace. Is Math::IEEE754::Encoder (and ...::Decoder) OK? Or is Number::IEEE754::Encoder better? Or any other?
>
> Here is an example showing how I use it:
>
> my $encoder = Math::IEEE754::Encoder -> new("binary16");
> my $bytes = $encoder -> (3.14159265358979);  # = "\x42\x48"
>
> my $decoder = Math::IEEE754::Decoder -> new("binary16");
> my $number = $decoder -> ($bytes);               # = 3.140625
>
> The reason for returning an anonymous function rather than implementing the function directly, is speed. There are some constants involved, and I don't want to compute them for each function call.
>
> Cheers,
> Peter John Acklam (PJACKLAM)