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Add new warning for CStr::from_ptr

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This commit is contained in:
Guillaume Gomez 2018-02-24 16:50:44 +01:00
parent 6070d3e47e
commit 5344b07add
1 changed files with 2 additions and 0 deletions
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2
src/libstd/ffi/c_str.rs
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@ -875,6 +875,8 @@ impl CStr {
/// `ptr`.
/// * There is no guarantee that the memory pointed to by `ptr` contains a
/// valid nul terminator byte at the end of the string.
/// * It is not guaranteed that the memory pointed by `ptr` won't change
/// before the `CStr` has been destroyed.
///
/// > **Note**: This operation is intended to be a 0-cost cast but it is
/// > currently implemented with an up-front calculation of the length of