Miscellaneous minor improvements #2370
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src/generics/generic-functions.md
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| @@ -19,7 +19,7 @@ fn pick<T>(n: i32, even: T, odd: T) -> T { | |||
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| fn main() { | |||
| println!("picked a number: {:?}", pick(97, 222, 333)); | |||
| println!("picked a tuple: {:?}", pick(28, ("dog", 1), ("cat", 2))); | |||
| println!("picked a tuple: {:?}", pick(28, "dog", "cat")); | |||
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These aren't tuples anymore. I guess that would be "picked a string". But the idea here was to show that T doesn't just have to be a named type like String or i32, but can be any type.
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I agree, I would add this as an additional example so the students see two "simple" types as well as a compound type.
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Hrm, I get what you're saying about demonstrating that generic types can also be compound types, though I don't think it's all that important to emphasize. I think students can generalize from "integers and strings" to "any type". But saying it explicitly to students might be good, so would it be good enough to add a speaker note about it?
Various little changes that I've wanted when going through classes. Let me know if any of these seem problematic, I can pretty easily remove any commits that would be better to discuss separately.