I am using Nim on embedded system, so RAM is quite precious.
If we do following in C:
const int a[] = {1,2,3};
Run
a will be stored in ROM, and no RAM is consumed.
While in Nim, if we declare it in a let statement:
let a = [1,2,3]
Run
a will be allocated in RAM, and its content is initialized (copied from ROM) in
startup. If we declare it in a const statement, then we are not allowed to get
its address. But I need this address to call other C functions.
For C backend, is it possible to make let variables read-only and eliminate the
copy operation?
