Commit 9b8b363

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fivonacci

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Lines changed: 43 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1,6 +1,48 @@`
`1`	`1`
	`2`	`+fn apply<F>(x: f64, f: F) -> f64`
	`3`	`+where F: Fn(f64) -> f64 {`
	`4`	`+ f(x)`
	`5`	`+}`
	`6`	`+`
	`7`	`+fn mutate<F> (mut f: F)`
	`8`	`+where F: FnMut() {`
	`9`	`+ f()`
	`10`	`+}`
	`11`	`+`
`2`	`12`	`fn main() {`
`3`	`13`	`let f = \|x\| x*x;`
`4`	`14`	`let res = f(10);`
`5`		`- println!("res {}", res);`
	`15`	`+ println!("res {}", f(1));`
	`16`	`+`
	`17`	`+ let a = 2.0;`
	`18`	`+ let b = 1.0;`
	`19`	`+ let f1 = \|x\| a*x + b;`
	`20`	`+ println!("res is {}", f1(2.0));`
	`21`	`+`
	`22`	`+ let res1 = apply(3.0, f1);`
	`23`	`+ let res2 = apply(3.14, \|x\| x.sin());`
	`24`	`+ println!("res1 {} res2 {}", res1, res2);`
	`25`	`+`
	`26`	`+ let mut s = "world";`
	`27`	`+ mutate(\|\| s = "hello");`
	`28`	`+ println!("s is {}", s);`
	`29`	`+ assert_eq!(s, "hello");`
	`30`	`+`
	`31`	`+ let mut s = "world";`
	`32`	`+ let mut changer = \|\| s = "hello";`
	`33`	`+ changer();`
	`34`	`+`
	`35`	`+ assert_eq!(s, "hello");`
	`36`	`+ println!("{}", s);`
	`37`	`+`
	`38`	`+ let name = "dolly".to_string();`
	`39`	`+ let age = 42;`
	`40`	`+`
	`41`	`+ let c_name = name.clone();`
	`42`	`+ let c = move \|\| {`
	`43`	`+ println!("name is {} age is {}", c_name, age);`
	`44`	`+ };`
	`45`	`+ c();`
	`46`	`+`
	`47`	`+ println!("{}", name);`
`6`	`48`	`}`

Lines changed: 53 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,53 @@`
	`1`	`+`
	`2`	`+#[derive(Debug)]`
	`3`	`+struct Fivo {`
	`4`	`+ first: u32,`
	`5`	`+ second: u32`
	`6`	`+}`
	`7`	`+`
	`8`	`+impl Iterator for Fivo {`
	`9`	`+ type Item = u32;`
	`10`	`+ fn next(&mut self) -> Option<Self::Item> {`
	`11`	`+ let res = self.first + self.second;`
	`12`	`+ self.first = self.second;`
	`13`	`+ self.second = res;`
	`14`	`+`
	`15`	`+ if res > 1000 {`
	`16`	`+ None`
	`17`	`+ } else {`
	`18`	`+ Some(res)`
	`19`	`+ }`
	`20`	`+ }`
	`21`	`+}`
	`22`	`+`
	`23`	`+#[derive(Debug)]`
	`24`	`+struct StrFivo {`
	`25`	`+ first: String,`
	`26`	`+ second: String`
	`27`	`+}`
	`28`	`+`
	`29`	`+impl Iterator for StrFivo {`
	`30`	`+ type Item = String;`
	`31`	`+ fn next(&mut self) -> Option<Self::Item> {`
	`32`	`+ let res = self.first.to_string() + &self.second;`
	`33`	`+ self.first = self.second.to_string();`
	`34`	`+ self.second = res.to_string();`
	`35`	`+ if res.len() > 200 {`
	`36`	`+ None`
	`37`	`+ } else {`
	`38`	`+ Some(res.to_string())`
	`39`	`+ }`
	`40`	`+ }`
	`41`	`+}`
	`42`	`+`
	`43`	`+fn main() {`
	`44`	`+ let fivonachi_iter = \|\| Fivo { first: 1, second: 2};`
	`45`	`+ for i in fivonachi_iter() {`
	`46`	`+ println!("{}", i);`
	`47`	`+ }`
	`48`	`+`
	`49`	`+ let fivostr_iter = \|a: &str, b: &str\| StrFivo { first: a.to_string(), second: b.to_string() } ;`
	`50`	`+ for s in fivostr_iter("he", "wo") {`
	`51`	`+ println!("{}", s);`
	`52`	`+ }`
	`53`	`+}`

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