btoi

Parse integers from ASCII byte slices.

Introduction

Provides functions similar to from_str_radix, but is faster when parsing directly from byte slices instead of strings.

Supports #![no_std].

use btoi::btoi;

assert_eq!(Ok(42), btoi(b"42"));
assert_eq!(Ok(-1000), btoi(b"-1000"));

Documentation

Read the documentation

MSRV policy

The minimum supported Rust version is 1.60, matching num_traits, with no intent to ever increase it.

That's because #![feature(int_from_ascii)] in the standard library will hopefully eventually make this crate obsolete for new versions of Rust, and so old versions are the priority.

Changelog

• 0.5.0
  • Tweak error messages and expose ParseIntegerErrorKind via ParseIntegerError::kind().
• 0.4.4 (yanked due to unintended MSRV bump)
  • Implement core::error::Error for ParseIntegerError.
• 0.4.3
  • Use #[track_caller].
• 0.4.2
  • No longer !#[deny(warnings)], which is is a forwards compability hazard in libraries.
  • Explicit !#[forbid(unsafe_code)].
• 0.4.1
  • - was parsed as zero, but should have errored. Thanks @wayslog.
• 0.4.0
  • Change type of radix to u32 (from u8) to mirror the standard library.
  • No need to #[inline] generic functions.
• 0.3.0
  • New default feature std. Disable for #![no_std] support.
  • Mark functions as #[inline].
• 0.2.0
  • No longer reexport num-traits.
• 0.1.3
  • Update to num-traits 0.2 (semver compatible).
• 0.1.2
  • Fix documentation warnings.
  • Update dependencies.
• 0.1.1
  • Documentation fixes.
• 0.1.0
  • Initial release.

License

btoi is dual licensed under the Apache 2.0 and MIT license, at your option.