38 lines
826 B
Plaintext
38 lines
826 B
Plaintext
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== Why is this an issue?
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An array index out-of-bounds panic is a bug class that occurs in Rust when a
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program tries to access an array element that does not exist.
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This bug can cause your program to crash or behave unexpectedly.
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include::../impact.adoc[]
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== How to fix it
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To fix an array index out of bounds panic in Rust, you should always ensure
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that you are accessing array elements within the bounds of the array.
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=== Code examples
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==== Noncompliant code example
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[source,rust,diff-id=1,diff-type=noncompliant]
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----
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let x = [1, 2, 3, 4];
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x[9]; // Out of bounds indexing
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----
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==== Compliant solution
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[source,rust,diff-id=1,diff-type=compliant]
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----
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let x = [1, 2, 3, 4];
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x[0];
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----
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== Resources
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=== Documentation
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* Clippy Lints - https://rust-lang.github.io/rust-clippy/master/index.html#out_of_bounds_indexing
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