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diff --git a/third_party/rust/cstr/README.md b/third_party/rust/cstr/README.md new file mode 100644 index 0000000000..7ee3ba2474 --- /dev/null +++ b/third_party/rust/cstr/README.md @@ -0,0 +1,30 @@ +# cstr + +[](https://github.com/upsuper/cstr/actions) +[](https://crates.io/crates/cstr) +[](https://docs.rs/cstr) + +<!-- cargo-sync-readme start --> + +A macro for getting `&'static CStr` from literal or identifier. + +This macro checks whether the given literal is valid for `CStr` +at compile time, and returns a static reference of `CStr`. + +This macro can be used to to initialize constants on Rust 1.64 and above. + +## Example + +```rust +use cstr::cstr; +use std::ffi::CStr; + +let test = cstr!(b"hello\xff"); +assert_eq!(test, CStr::from_bytes_with_nul(b"hello\xff\0").unwrap()); +let test = cstr!("hello"); +assert_eq!(test, CStr::from_bytes_with_nul(b"hello\0").unwrap()); +let test = cstr!(hello); +assert_eq!(test, CStr::from_bytes_with_nul(b"hello\0").unwrap()); +``` + +<!-- cargo-sync-readme end --> |