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105 lines
2.5 KiB
105 lines
2.5 KiB
/* |
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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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