box-o-sand/rustbyexample/flow_control.d/if_let2.rs

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Rust
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2023-09-30 23:39:55 +00:00
enum Foo {
Bar,
Baz,
Qux(u32),
}
fn main() {
let a = Foo::Bar;
let b = Foo::Baz;
let c = Foo::Qux(100);
if let Foo::Bar = a {
println!("a is a foobar");
}
if let Foo::Bar = b {
println!("b is foobar");
}
if let Foo::Qux(value) = c {
println!("c is {}", value);
}
if let Foo::Qux(value @ 100) = c {
println!("c is one hundred (value: {:?})", value);
}
}