add draft on Tree Borrows

[web.git] / personal / _posts / 2022-09-26-cargo-careful.md

diff --git a/personal/_posts/2022-09-26-cargo-careful.md b/personal/_posts/2022-09-26-cargo-careful.md
index 234b8d44e0888005042808877e2014d05fa7cca8..28a85c9b6547b2640ccb4c52987d902f150fa0b9 100644 (file)
--- a/personal/_posts/2022-09-26-cargo-careful.md
+++ b/personal/_posts/2022-09-26-cargo-careful.md
@@ -5,7 +5,7 @@ reddit: /rust/comments/xogayv/cargo_careful_run_your_rust_code_with_extra/
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 Did you know that the standard library is full of useful checks that users never get to see?
 ---
 
 Did you know that the standard library is full of useful checks that users never get to see?

-There are plenty of debug assertions in the standard library that will do things like check that `char::from_u32_unchecked` is called on a valid `char`, that `CStr::from_bytes_with_nul_unchecked` does not have internal nul bytes, or that pointer functions such as `read`, `copy`, or `copy_nonoverlapping` are called on suitably aligned non-null (and non-overlapping) pointers.
+There are plenty of debug assertions in the standard library that will do things like check that `char::from_u32_unchecked` is called on a valid `char`, that `CStr::from_bytes_with_nul_unchecked` does not have internal nul bytes, or that pointer functions such as `copy` or `copy_nonoverlapping` are called on suitably aligned non-null (and non-overlapping) pointers.

 However, the regular standard library that is distributed by rustup is compiled without debug assertions, so there is no easy way for users to benefit from all this extra checking.
 
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 However, the regular standard library that is distributed by rustup is compiled without debug assertions, so there is no easy way for users to benefit from all this extra checking.
 
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