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58 lines
1.5 KiB
58 lines
1.5 KiB
![]()
4 years ago
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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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### Notions
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- https://doc.rust-lang.org/rust-by-example/scope/move.html
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### Expected Functions
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```rust
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pub fn nbr_function(c: u32) -> (u32, f64, f64) {
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}
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pub fn str_function(a: String) -> (String, String) {
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}
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pub fn vec_function(b: Vec<u32>) -> (Vec<u32>, Vec<f64>) {
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}
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```
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### Usage
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Here is a possible program to test your function :
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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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And its output:
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```console
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student@ubuntu:~/[[ROOT]]/test$ cargo run
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(0, 1.0, inf)
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([1, 2, 4, 5], [0.0, 0.6931471805599453, 1.3862943611198906, 1.6094379124341003])
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("1 2 4 5 6", "2.718281828459045 7.38905609893065 54.598150033144236 148.4131591025766 403.4287934927351")
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student@ubuntu:~/[[ROOT]]/test$
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```
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