Lib.rs

此 crate 实现的两个 trait 方法（inc_by 和 dec_by）生成的汇编代码，在绝大多数情况下应该与递增 "step" 基准的 while 循环或递减 "step" 基准的 while 循环生成的汇编代码几乎或完全相同。如果你遇到不是这种情况的场景，请随时就此事提交一个问题。

最低支持的 Rust 版本：由于使用了 Step trait，该 trait 尚未稳定，因此此 crate 目前仅适用于 nightly。

#![no_std] 兼容性：此 crate 默认完全兼容 #![no_std]。

基本使用示例

use staticstep::*;

// Apart from aiming to provide a properly-optimized Rust equivalent to the sort of C-style for-loop
// that ends in `i += number` or `i -= number` as opposed to `i++` or `i--`, this crate also aims to
// (and does) support backwards ranges in a meaningful way that's logically equivalent to how
// forwards ranges are generally dealt with in Rust.

fn main() {
  // Exclusive, so 48 is the last number printed.
  for i in (0..64).inc_by::<16>() {
    print!("{} ", i);
  }
  println!("");

  // Inclusive, so 64 is the last number printed.
  for i in (0..=64).inc_by::<16>() {
    print!("{} ", i);
  }
  println!("");

  // Exclusive, so 16 is the last number printed.
  for i in (64..0).dec_by::<16>() {
    print!("{} ", i);
  }
  println!("");

  // Inclusive, so 0 is the last number printed.
  for i in (64..=0).dec_by::<16>() {
    print!("{} ", i);
  }

  // Note that `inc_by` will always immediately return `None` if given a reverse range, while
  // `dec_by` will always immediately return `None` if given a "normal" forwards range.
}

许可

根据 MIT 许可证 或 Apache 许可证 版本 2.0 许可。任选其一！任何源代码贡献将以相同的方式双重许可。