[Feature Request] DType info methods

[lsh]

A few DType methods would be nice such as:

• min_number[T: DType]() -> Int
• max_number[T: DType]() -> Int
• bits[T: DType]() -> Int
• infinity[T: DType]() -> SIMD[T, 1] for floating point types
• nan[T: DType]() -> SIMD[T, 1] for floating point types

[jayant-01]

hello, @lsh what we have to do here?

[lsh]

@jayant-01 What I'm asking for amounts to just defining a few constants, kind of like the C numeric limits or the associated constants on Rust types. Ideally it would also work for Int and FloatLiteral. One point to hash out is the actual API, since I think something like min_number[T: DType]() -> SIMD[T, 1] would be nice, which would in that case return the lowest possible value for the given DType.

[jayant-01]

ook @lsh i understand it,

so basically we have a creat like a function which will return the lowest value in a list or any other dataset

[jayant-01]

Am i right??

[jayant-01]

hello @lsh did i get it wrong please rectify ?

[lsh]

@jayant-01 that's not exactly right. I'm asking for a function that will return the lowest possible value for a type, and the highest possible value for that type. These wouldn't change based on the dataset or input, except for something like Int, which is hardware defined if I understand correctly.

[lattner]

I think the request here is pretty straight-forward and logical. @abduld can you route this appropriately?

[jayant-01]

@lsh currently I don't have the access to Mojo playground so first let me have the permission then I can work on this.

Is that will be okay?

[abduld]

This makes perfect sense. One thing is that there are function like inf, nan, and neg_inf that are in the stdlib. Thanks for the suggestion to complete adding the numeric traits functions

[Mogball]

Fixed in latest release