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Diffstat (limited to 'To put data on the heap use a Box.md')
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diff --git a/To put data on the heap use a Box.md b/To put data on the heap use a Box.md new file mode 100644 index 0000000..442adca --- /dev/null +++ b/To put data on the heap use a Box.md @@ -0,0 +1,15 @@ +[[Rust]] +[[Variables lives on the stack]] +[[When heap data is deallocated]] +[[Ownership]] + +--- + +The heap is where data can live indefinitely and we can create pointers to it on the stack using a Box. + +```rust +let a = Box::new([0; 1_000_000]); +let b = a; +``` + +Creates an array with 1 million entries on the heap and two variables on the stack that are a *pointer* to that heap data.
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