X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/832768ac8f69b436c1f90ad7a2f01af25091599a..a0ae4ec8a5da0e171cb2d2f68621fa98f5ea610b:/src/part01.rs diff --git a/src/part01.rs b/src/part01.rs index 7d29c49..95e4593 100644 --- a/src/part01.rs +++ b/src/part01.rs @@ -13,10 +13,10 @@ //@ For example, consider `sqr`: fn sqr(i: i32) -> i32 { i * i } //@ Between the curly braces, we are giving the *expression* that computes the return value. -//@ So we can just write `i * i`, the expression that returns the square if `i`! +//@ So we can just write `i * i`, the expression that returns the square of `i`! //@ This is very close to how mathematicians write down functions (but with more types). -// Conditionals are also just expressions. You can compare this to the ternary `? :` operator +// Conditionals are also just expressions. This is comparable to the ternary `? :` operator // from languages like C. fn abs(i: i32) -> i32 { if i >= 0 { i } else { -i } } @@ -45,7 +45,7 @@ fn compute_stuff(x: i32) -> i32 { fn vec_min(v: Vec) -> NumberOrNothing { //@ Remember that helper function `min_i32`? Rust allows us to define such helper functions *inside* other //@ functions. This is just a matter of namespacing, the inner function has no access to the data of the outer - //@ one. Still, being able to nicely group functions can be very useful. + //@ one. Still, being able to nicely group functions can significantly increase readability. fn min_i32(a: i32, b: i32) -> i32 { if a < b { a } else { b } /*@*/ } @@ -102,8 +102,8 @@ pub fn main() { // You will have to replace `part00` by `part01` in the `main` function in // `main.rs` to run this code. -// **Exercise 01.1**: Write a funtion `vec_sum` that computes the sum of all values of a `Vec`. +// **Exercise 01.1**: Write a function `vec_sum` that computes the sum of all values of a `Vec`. // **Exercise 01.2**: Write a function `vec_print` that takes a vector and prints all its elements. -//@ [index](main.html) | [previous](part00.html) | [raw source](https://www.ralfj.de/git/rust-101.git/blob_plain/HEAD:/workspace/src/part01.rs) | [next](part02.html) +//@ [index](main.html) | [previous](part00.html) | [raw source](workspace/src/part01.rs) | [next](part02.html)