This library provide a bunch of macros useful for interacting with C code.

# Why c_macros?

1. All alternatives are performant as possible,in particular `to_raw_c_string("Hello world!")` does not
convert a vector into a boxed slice as `CString::from_vec_unchecked(String::from("Hello world!").into_bytes()).into_raw()` does.

2. As such,because they use byte literal syntax at the expansion,all are safe abstractions and does not need
an unsafe block neither trigger warnings if are inside of one.

# Versions

This library require a nightly compiler with the following features enabled: [proc_macro_hygiene] because
the macros are only useful expanded as expressions,[new_uninit] and [type_ascription] for
[to_raw_c_string].

[proc_macro_hygiene]: https://github.com/rust-lang/rust/issues/54727
[new_uninit]: https://github.com/rust-lang/rust/issues/63291
[type_ascription]: https://github.com/rust-lang/rust/issues/23416
[to_raw_c_string]: https://docs.rs/c_macros/0.1.1/c_macros/macro.to_raw_c_string.html