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add link to reference about undefined behavior #447

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Apr 3, 2024
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add link to reference about undefined behavior #447

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7 changes: 7 additions & 0 deletions src/what-unsafe-does.md
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Expand Up @@ -41,6 +41,9 @@ language cares about is preventing the following things:
[`NonNull`] that is null. (Requesting custom invalid values is an unstable
feature, but some stable libstd types, like `NonNull`, make use of it.)

For a more detailed explanation about "Undefined Bahavior", you may refer to
[the reference][behavior-considered-undefined].

"Producing" a value happens any time a value is assigned, passed to a
function/primitive operation or returned from a function/primitive operation.

Expand Down Expand Up @@ -75,6 +78,8 @@ Rust considers it "safe" to:
* Abort the program
* Delete the production database

For more detailed information, you may refer to [the reference][behavior-not-considered-unsafe].

However any program that actually manages to do such a thing is *probably*
incorrect. Rust provides lots of tools to make these things rare, but
these problems are considered impractical to categorically prevent.
Expand All @@ -84,3 +89,5 @@ these problems are considered impractical to categorically prevent.
[race]: races.html
[target features]: ../reference/attributes/codegen.html#the-target_feature-attribute
[`NonNull`]: ../std/ptr/struct.NonNull.html
[behavior-considered-undefined]: ../reference/behavior-considered-undefined.html
[behavior-not-considered-unsafe]: ../reference/behavior-not-considered-unsafe.html
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