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GeezerVison is showing github.com — function-pointers/fp.rs at master · upperdim/function-pointers Expand file tree/ Copy pathfp.rsMore file actions 18 lines (15 loc) · 288 Bytes / Copy pathfp.rsFile metadata and controls18 lines (15 loc) · 288 Bytes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 fn increment(n: i32) -> i32 { n + 1 } fn my_objective(arr: &mut [i32], f: fn(i32) -> i32) { for elem in arr.iter_mut() { *elem = f(*elem); } } fn main() { let mut arr: [i32; 5] = [0, 1, 2, 3, 4]; my_objective(&mut arr, increment); for elem in arr { print!("{} ", elem); } } |
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