# c8str
This crate provides the `C8Str` and `C8String` types, which combine the properties
of Rust native utf-8 strings and C style null terminated strings. These types guarantee that:
- The string is valid utf-8
- The string ends with a null terminator
- The string doesn't contain any null bytes before the end
Both types provide methods to get references to both `&str` (with or without the null
terminator) and `&CStr`, or a pointer to `*const c_char`. They dereference to `&str`
without the null terminator.
The `c8` macro creates compile time constants of type `&C8Str` from string literals.
`C8Str` is `no_std` compatible. `C8String` is available behind the `alloc` feature.
```rust
# use c8str::c8;
# use core::ffi::CStr;
assert_eq!(c8!("hello").as_str(), "hello");
assert_eq!(c8!("hello").as_c_str(), CStr::from_bytes_with_nul(b"hello\0").unwrap());
// assert_eq!(c8!("hello").as_c_str(), c"hello")); // from rust 1.77
```
## Features
- `alloc` - Enable the `C8String` type. This requires the standard `alloc` or `std` crates.
- `std` - Implement the `Error` trait from `std` for this crate's error types. Implies `alloc`.