arrange-0.1.1 has been yanked.

arrange

Convenience functions for populating an array with values from a range.

Dual-licensed under MIT or the UNLICENSE.

Documentation

Why

a..b in V can only be in increasing order and not in negative order.
Lacks inbuilt step which most people need or want.
No support for float type.
Solution for vlang/v#5944.

Features

Make range arrays easily
Make ranges for int and f32
Positive as well as Negative Support!
No need to write the whole for loop! (this maybe slower than the normal one)
Use range for functional programming
Full Python's range() functionality

Installation

This crate works with Cargo and is on crates.io.
The package will be regularly updated. Add it to your Cargo.toml like so:

[dependencies]
arrange = "0.1.0"

Usage

range.int(start:0, stop:value, step:1) makes a range of int with the following parameters:
    start: start value of the range by default it's 0
    stop: stop value of the range
    step: step value of the range by default it's 1

range.float(start:0.0, stop:value, step:1.0) makes a range of f32 with the following parameters:
    start: start value of the range by default it's 0.0
    stop: stop value of the range
    step: step value of the range by default it's 1.0

Note: If range.int(step:0) or range.float(step:0) then an error will be raised because step cannot be zero.

Examples

Usage is simple:

use arrange::Range;

fn main() {
    let a: []int = Range<int>::new(start:1, stop:10, step:2);
    println("{:?}", a);
}

extern crate arrange;
use arrange::IntRange;

fn main() {
    /*     let mir = IntRange::new(1, 10, 2);
    let b = mir.range();
    println!("first {:?}", mir);
    println!("{:?}", b);
    //
    println!("second {:?}", IntRange::new(1, 10, 2).range()); */
    for i in IntRange::new(1, 10, 2).range() {
        print!("{} ", i); // prints out: 13579
    }
}

    /* range.int(start:1, stop:10) {
    range.int(start:1, stop:10, step:2) {
    range.int(start:10, stop:1, step:-1) {
    range.int(start:-5, stop:-1, step: 1) {
    // using range.float
    range.float(stop:10) {
    range.float(stop:10, step:0.2) {
    range.float(start:0.1, stop:10) {
    range.float(start:10, stop:1.0, step:-0.2) {
    range.float(start:-10, stop:-1.0, step:0.2) { */

Status of implementation