# `::byte-strings` Rust zero-cost byte strings manipulation, for a better and safer FFI [![Repository](https://img.shields.io/badge/repository-GitHub-brightgreen.svg)]( https://github.com/danielhenrymantilla/byte-strings-rs) [![Latest version](https://img.shields.io/crates/v/byte-strings.svg)]( https://crates.io/crates/byte-strings) [![Documentation](https://docs.rs/byte-strings/badge.svg)]( https://docs.rs/byte-strings) [![MSRV](https://img.shields.io/badge/MSRV-1.65.0-white)]( https://gist.github.com/danielhenrymantilla/8e5b721b3929084562f8f65668920c33) [![License](https://img.shields.io/crates/l/byte-strings.svg)]( https://github.com/danielhenrymantilla/byte-strings-rs/blob/master/LICENSE-ZLIB) [![CI](https://github.com/danielhenrymantilla/byte-strings-rs/workflows/CI/badge.svg)]( https://github.com/danielhenrymantilla/byte-strings-rs/actions) ## Example Featuring the `c_str!` macro to create **valid C string literals** with literally no runtime cost! ```rust #[macro_use] extern crate byte_strings; /// Some lib mod safe { use ::std::{ ffi::CStr, os::raw::{c_char, c_int}, }; /// private unsafe C FFI mod ffi { use super::*; extern "C" { pub fn puts (_: *const c_char) -> c_int ; } } /// lib API: safe Rust wrapper => uses `CStr` pub fn puts (message: &'_ CStr) -> i32 { unsafe { ffi::puts(message.as_ptr()) as i32 } } } fn main () { safe::puts(c!("Hello, World!")); } ```