Syntax
ArrayType :
[Type;Expression]
An array is a fixed-size sequence of N elements of type T. The array type is written as [T; N]. The size is a constant expression that evaluates to a usize.
Examples:
// A stack-allocated array let array: [i32; 3] = [1, 2, 3]; // A heap-allocated array, coerced to a slice let boxed_array: Box<[i32]> = Box::new([1, 2, 3]);
All elements of arrays are always initialized, and access to an array is always bounds-checked in safe methods and operators.
Note: The
Vec<T>standard library type provides a heap-allocated resizable array type.