Working with std¶

The standard library is the package almost every Novus project touches first.

Import style¶

The cleanest modern pattern is:

import lib/std std;

In some projects you may also see:

import lib/std/main;

Both styles exist in the current ecosystem. When in doubt, check the package entrypoint in lib/std/main.nov.

Useful patterns¶

Printing¶

std.print("hello");

Converting values¶

let count: i32 = 5;
std.print(std.to_str(count));

Length helpers¶

let text: str = "abc";
let xs: []i32 = [1, 2, 3];

std.print(std.to_str(std.len(text)));
std.print(std.to_str(std.len(xs)));

Strings and arrays¶

Novus applications often combine builtins and std-style helpers:

let xs: []str = [];
array_append(xs, "first");
array_append(xs, "second");
std.print(std.to_str(std.len(xs)));

Why std matters¶

std is where application code should start before reaching for inline assembly or platform-specific packages.

It lets you:

print and exit cleanly
convert numbers to strings
work with arrays and strings idiomatically
avoid re-implementing basic helpers in every project

Example¶

module hello_std;

import lib/std std;

fn main() -> i32 {
    let title: str = "Novus";
    let nums: []i32 = [4, 8, 15, 16];

    std.print("Title: " + title);
    std.print("Items: " + std.to_str(std.len(nums)));
    std.exit(0);
    return 0;
}

Real-world note¶

Older projects may still call helpers like array_len_str(...) or use broad unaliased imports. Modern docs and modern libraries are moving toward a more consistent surface where common operations are unified.