14 lines
247 B
Rust
14 lines
247 B
Rust
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fn identity(a: &u32) -> &u32 { a }
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fn print_foo(f: &fn(&u32) -> &u32, x: &u32) {
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print!("{}", (*f)(x));
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}
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fn main() {
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let x = &4;
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let f: fn(&u32) -> &u32 = identity;
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// Didn't print 4 on optimized builds
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print_foo(&f, x);
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}
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