Feature gate calls to const fns #25880
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| #![crate_type="rlib"] | ||
| #![feature(const_fn)] | ||
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| pub const fn foo() -> usize { 22 } //~ ERROR const fn is unstable |
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I think this may be a stray ERROR annotation (I also think the explicit crate_type isn't necessary)
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yes, it is. I like having the crate_type there though because it makes it easier to run the tests by hand (I don't have to remember to pass --crate-type)
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…excrichton The previous feature gate assumed we would not define any (stable) const fns. But then @eddyb went and cleaned up the code. So this now extends the feature-gate to prohibit calls; but calls inside of macros are considered ok. r? @alexcrichton
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The previous feature gate assumed we would not define any (stable) const fns. But then @eddyb went and cleaned up the code. So this now extends the feature-gate to prohibit calls; but calls inside of macros are considered ok.
r? @alexcrichton