26 lines
650 B
Rust
26 lines
650 B
Rust
// run-pass
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#![warn(pointer_structural_match)]
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type Func = fn(usize, usize) -> usize;
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fn foo(a: usize, b: usize) -> usize { a + b }
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fn bar(a: usize, b: usize) -> usize { a * b }
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fn test(x: usize) -> Func {
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if x % 2 == 0 { foo }
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else { bar }
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}
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const FOO: Func = foo;
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const BAR: Func = bar;
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fn main() {
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match test(std::env::consts::ARCH.len()) {
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FOO => println!("foo"), //~ WARN pointers in patterns behave unpredictably
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//~^ WARN will become a hard error
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BAR => println!("bar"), //~ WARN pointers in patterns behave unpredictably
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//~^ WARN will become a hard error
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_ => unreachable!(),
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}
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}
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