lpenz / copstr

76%

Build Type

push

github

Committed by lpenz

Commit Message

feat: improve const string creation and UTF-8 safety

- Promote `new_const_trunc` to a `const fn`, enabling its use in static and const initializers.
- Implement safe UTF-8 truncation in `new_const_trunc_u8`: the function now backtracks
  to the nearest character boundary if the size limit falls in the middle of a multi-byte character.
- Refactor `new_const_trunc_u8` implementation to be more concise, integrating the
  truncation check into the main copy loop.
- Update documentation for `new_const` and `new_const_trunc`:
    - Removed outdated warnings about potential undefined behavior for `&str` inputs,
      as these functions are now guaranteed to produce valid UTF-8.
    - Added explicit safety warnings to `new_const_trunc_u8` and `new_const_u8` for raw byte inputs.
- Add a comprehensive test case in `tests/copstr_tests.rs` to verify correct multi-byte
  truncation behavior in a const context.

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0 of 10 new or added lines in 1 file covered. (0.0%)

1 existing line in 1 file now uncovered.

103 of 136 relevant lines covered (75.74%)

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