byte-strings-rs

Rust zero-cost byte strings manipulation, for a better and safer FFI

Example

Featuring the c_str! macro to create valid C string literals with literally no runtime cost!

```rust /// Some lib mod safe { use ::std::{ ffi::CStr, os::raw::{cchar, cint}, };

/// 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 () { use ::bytestrings::cstr;

dbg!(safe::puts(
    c_str!(
        "Hello, ",
        "World!",
    ) // No runtime error, no runtime cost
));

} ```