9245ba8304
We can never supply a meaningful implementation of this. Instead, the follow up commits will create two intrinsics that approximate comparisons: * `ptr_maybe_eq` * `ptr_maybe_ne` The fact that `ptr_maybe_eq(a, b)` is not necessarily the same value as `!ptr_maybe_ne(a, b)` is a symptom of this entire problem.
19 lines
428 B
Rust
19 lines
428 B
Rust
#![feature(const_generics)]
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//~^ WARN the feature `const_generics` is incomplete
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fn function() -> u32 {
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17
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}
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struct Wrapper<const F: fn() -> u32>; //~ ERROR: using function pointers as const generic parameters
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impl<const F: fn() -> u32> Wrapper<F> {
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//~^ ERROR: using function pointers as const generic parameters
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fn call() -> u32 {
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F()
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}
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}
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fn main() {
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assert_eq!(Wrapper::<function>::call(), 17);
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}
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