Re:Grids in Rust, Part 2: const generics
by nsajko on Saturday April 03, 2021 @02:47PM
(#26683597)
> Why do rust arrays have to have a size known at compile time?
Having a known-length array type in a programming language:
* allows the compiler to make certain optimizations using the information it has on the length, especially if the length is small
* allows the programmer to enforce constraints on the length of arrays at compilation time, which can make program correctness more evident and easier to accomplish
> This restriction is not found in other programming languages.
Ever heard about C or C++ or Go? Even dynamic languages like Julia allow defining such types.
Having a known-length array type in a programming language:
* allows the compiler to make certain optimizations using the information it has on the length, especially if the length is small
* allows the programmer to enforce constraints on the length of arrays at compilation time, which can make program correctness more evident and easier to accomplish
> This restriction is not found in other programming languages.
Ever heard about C or C++ or Go? Even dynamic languages like Julia allow defining such types.