std::Array missing tiny example code

[simonsan]

Trying to figure out, how arrays are being constructed exactly?

https://github.com/WerWolv/Documentation/blob/master/pattern_language/libraries/std/array.pat.md

And what methods are existing for them?

[EnronEvolved]

Encountering the same issue: need to perform a non-trivial operation on each element of an array, but I can't figure out how to create an empty one to store the results.

[EnronEvolved]

I've been fiddling around and I finally managed to get the pattern language to do what I want:

#include <std/mem.pat>

fn to_u16(s8 i) {
    return u16((u8(i)-127)%0x100);
};

#define GAIN 50
fn toAudio(u64 location, u64 length) {
    s8 data[length] @ location;
    std::mem::Section scratch = std::mem::create_section("scratch");
    u16 result[length] @ 0x0 in scratch;
    // are there better ways of doing these?

    for (u64 i = 0, i < length, i = i + 1) {
        result[i] = to_u16(data[i]) * GAIN;
    }
    return result;
};

Turns out passing arrays around as-is is a little janky. I created a new array by placing it in a new section, but I'm not sure if this is the expected thing to do or not.

[C3pa]

Hi simonsan, could you elaborate in more detail on what you would like the docs to describe? You specifically asked about std::Array, but EnronEvolved's snippet uses C-like arrays.