66 lines
1.7 KiB
Rust
66 lines
1.7 KiB
Rust
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use std::{slice, thread, time::Duration};
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use crate::Cacher;
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pub fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
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// let len = slice.len();
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// assert!(mid <= len);
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// (&mut slice[..mid], &mut slice[mid..])
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let len = slice.len();
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let ptr = slice.as_mut_ptr();
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assert!(mid <= len);
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unsafe {
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(
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slice::from_raw_parts_mut(ptr, mid),
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slice::from_raw_parts_mut(ptr.offset(mid as isize), len - mid),
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)
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}
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}
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//pub fn first_words<'a>(s: &'a str) -> &'a str {
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pub fn first_words(s: &str) -> &str {
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let b = s.as_bytes();
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for (i, &item) in b.iter().enumerate() {
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if item == b' ' {
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return &s[0..i];
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}
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}
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&s[..]
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}
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pub fn generate_workout(intensity: u32, random_number: u32) {
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// let calculation = |num: u32| -> u32 {
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// println!("calculating slowly...");
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// thread::sleep(Duration::from_secs(2));
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// num
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// };
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let mut expensive_result = Cacher::new(|num| {
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println!("calculating slowly...");
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thread::sleep(Duration::from_millis(500));
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num + 1
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});
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if intensity < 25 {
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println!("Today, do {} pushups!", expensive_result.value(intensity));
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println!("Next, do {} situps!", expensive_result.value(intensity));
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} else {
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if random_number == 3 {
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println!("Take a break today! Remember to stay hydrated!");
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} else {
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println!(
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"Today, run for {} minutes!",
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expensive_result.value(intensity)
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);
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}
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}
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}
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pub fn print_coordinates(&(x, y): &(i32, i32)) {
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println!("Current location: ({}, {})", x, y);
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}
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