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106 lines
2.5 KiB
106 lines
2.5 KiB
4 years ago
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/*
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## copy
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### Instructions
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Your objective is to fix the program so that all functions work.
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- `nbr_function`, returns a tuple with the original value, the exponential and logarithm of that value
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- `str_function`, returns a tuple with the original value and the exponential of that value as a string
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- `vec_function`, returns a tuple with the original value and the logarithm of each value
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The objective is to now how ownership works with different types.
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### Example
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```rust
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fn main() {
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let a = String::from("1 2 4 5 6");
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let b = vec![1, 2, 4, 5];
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let c: u32 = 0;
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println!("{:?}", nbr_function(c));
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// output: (12, 162754.79141900392, 2.4849066497880004)
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println!("{:?}", vec_function(b));
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// output: ([1, 2, 4], [0.0, 0.6931471805599453, 1.3862943611198906])
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println!("{:?}", str_function(a));
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// output: ("1 2 4", "2.718281828459045 7.38905609893065 54.598150033144236")
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}
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```
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### Notions
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- https://doc.rust-lang.org/rust-by-example/scope/move.html
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*/
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use copy::*;
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#[allow(dead_code)]
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fn main() {
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let a = String::from("1 2 4 5 6");
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let b = vec![1, 2, 4, 5];
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let c: u32 = 0;
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println!("{:?}", nbr_function(c));
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// output: (12, 162754.79141900392, 2.4849066497880004)
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println!("{:?}", vec_function(b));
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// output: ([1, 2, 4], [0.0, 0.6931471805599453, 1.3862943611198906])
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println!("{:?}", str_function(a));
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// output: ("1 2 4", "2.718281828459045 7.38905609893065 54.598150033144236")
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}
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#[test]
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fn ownership_nbr_test() {
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assert_eq!(
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nbr_function(12),
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(12, 162754.79141900392, 2.4849066497880004)
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);
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assert_eq!(nbr_function(1), (1, 2.718281828459045, 0.0));
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assert_eq!(nbr_function(0), (0, 1.0, std::f64::INFINITY));
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}
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#[test]
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fn ownership_vec_test() {
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assert_eq!(
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vec_function(vec![1, 2, 4]),
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(
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vec![1, 2, 4],
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vec![0.0, 0.6931471805599453, 1.3862943611198906]
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)
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);
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assert_eq!(
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vec_function(vec![0, 1]),
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(vec![0, 1], vec![std::f64::INFINITY, 0.0])
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);
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assert_eq!(
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vec_function(vec![1, 2, 4, 5]),
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(
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vec![1, 2, 4, 5],
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vec![
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0.0,
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0.6931471805599453,
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1.3862943611198906,
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1.6094379124341003
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]
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)
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);
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}
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#[test]
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fn ownership_str_test() {
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assert_eq!(
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str_function(String::from("1 2 4")),
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(
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"1 2 4".to_string(),
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"2.718281828459045 7.38905609893065 54.598150033144236".to_string()
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)
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);
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assert_eq!(
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str_function(String::from("1 0")),
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(("1 0".to_string(), "2.718281828459045 1".to_string()))
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);
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assert_eq!(str_function(
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String::from("1 2 4 5 6")),
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(("1 2 4 5 6".to_string(), "2.718281828459045 7.38905609893065 54.598150033144236 148.4131591025766 403.4287934927351".to_string())));
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}
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