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. The c8string macro creates a C8String verified at compile time, and the c8format macro can format into C8Strings.

The WithC8Str trait provides a convenience method for accessing an object as a &C8Str.

C8Str is no_std compatible. C8String is available behind the alloc feature.

# use c8str::c8;
assert_eq!(c8!("hello").as_str(), "hello");
assert_eq!(c8!("hello").as_c_str(), c"hello");

Features

• alloc - Enable the C8String type. This requires the standard alloc or std crates.

Recent changes

• 0.2.1:

  • Fix c8format macro

• 0.2.0:

  • Add c8format macro
  • Add WithC8Str trait
  • Add some methods
  • Change C8String::new to take no args and create an empty string without allocating
  • Impl Index<RangeFrom<usize>> for C8Str
  • MSRV 1.81

• 0.1.2

  • Make C8Str::from_ptr[_unchecked] const

• 0.1.1

  • Show documentation for all features on docs.rs

• 0.1.0

  • First release