Module std::range

Integer ranges

Ranges come in different flavors, depending on what kind of bounds they have. For example 0..3 (Range) is a range that contains numbers 0, 1 and 2, 0..=3 (RangeInclusive) is a range that contains numbers 0, 1, 2 and 3.

The most common use of ranges is in for loops and in slice indexing.

for _ in 0..3 {
    // loop body
}
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let hw = "hello world";
println!("{}", hw[..5]); // prints "hello"
println!("{}", hw[6..]); // prints "world"
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See also Range and RangeOf for protocols that can be used for designing APIs that accept generic ranges.

Structs