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17 lines
698 B
Rust
17 lines
698 B
Rust
#![feature(half_open_range_patterns_in_slices)]
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#![feature(exclusive_range_pattern)]
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fn main() {
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let xs = [13, 1, 5, 2, 3, 1, 21, 8];
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let [a, b, c, rest @ ..] = xs;
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// Consider the following example:
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assert!(a == 13 && b == 1 && c == 5 && rest.len() == 5);
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// What if we wanted to pull this apart without individually binding a, b, and c?
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let [first_three @ ..3, rest @ 2..] = xs;
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//~^ pattern requires 2 elements but array has 8
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// This is somewhat unintuitive and makes slice patterns exceedingly verbose.
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// We want to stabilize half-open RangeFrom (`X..`) patterns
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// but without banning us from using them for a more efficient slice pattern syntax.
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}
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