28 lines
498 B
Rust
28 lines
498 B
Rust
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fn fn_pointer_static() -> usize {
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static FN: fn() -> usize = || 1;
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let res = FN() + 1;
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res
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}
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fn fn_pointer_const() -> usize {
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const FN: fn() -> usize = || 1;
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let res = FN() + 1;
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res
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}
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fn deref_to_dyn_fn() -> usize {
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struct Derefs;
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impl std::ops::Deref for Derefs {
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type Target = dyn Fn() -> usize;
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fn deref(&self) -> &Self::Target {
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&|| 2
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}
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}
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static FN: Derefs = Derefs;
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let res = FN() + 1;
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res
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}
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fn main() {}
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