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type Func = fn(usize, usize) -> usize;
fn foo(a: usize, b: usize) -> usize { a + b }
fn bar(a: usize, b: usize) -> usize { a * b }
fn test(x: usize) -> Func {
if x % 2 == 0 { foo }
else { bar }
}
const FOO: Func = foo;
const BAR: Func = bar;
fn main() {
match test(std::env::consts::ARCH.len()) {
FOO => println!("foo"), //~ ERROR behave unpredictably
BAR => println!("bar"), //~ ERROR behave unpredictably
_ => unreachable!(),
}
}
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