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[rust.git] / src / test / ui / internal / internal-unstable-const.rs
1 // Don't allow unstable features in stable functions without `allow_internal_unstable`.
2
3 #![stable(feature = "rust1", since = "1.0.0")]
4 #![feature(staged_api)]
5 #![feature(const_fn_floating_point_arithmetic)]
6
7 #[stable(feature = "rust1", since = "1.0.0")]
8 #[rustc_const_stable(feature = "rust1", since = "1.0.0")]
9 pub const fn foo() -> f32 {
10     1.0 + 1.0 //~ ERROR const-stable function cannot use `#[feature(const_fn_floating_point_arithmetic)]`
11 }
12
13 fn main() {}