mirror of https://github.com/rust-lang/rust
52 lines
1.2 KiB
Rust
52 lines
1.2 KiB
Rust
fn foo<const C: usize>() {}
|
|
|
|
const BAR: usize = 42;
|
|
|
|
fn a() {
|
|
foo::<BAR + 3>(); //~ ERROR expected one of
|
|
}
|
|
fn b() {
|
|
// FIXME(const_generics): these diagnostics are awful, because trait objects without `dyn` were
|
|
// a terrible mistake.
|
|
foo::<BAR + BAR>();
|
|
//~^ ERROR expected trait, found constant `BAR`
|
|
//~| ERROR expected trait, found constant `BAR`
|
|
//~| ERROR type provided when a constant was expected
|
|
}
|
|
fn c() {
|
|
foo::<3 + 3>(); //~ ERROR expressions must be enclosed in braces
|
|
}
|
|
fn d() {
|
|
foo::<BAR - 3>(); //~ ERROR expected one of
|
|
}
|
|
fn e() {
|
|
foo::<BAR - BAR>(); //~ ERROR expected one of
|
|
}
|
|
fn f() {
|
|
foo::<100 - BAR>(); //~ ERROR expressions must be enclosed in braces
|
|
}
|
|
fn g() {
|
|
foo::<bar<i32>()>(); //~ ERROR expected one of
|
|
}
|
|
fn h() {
|
|
foo::<bar::<i32>()>(); //~ ERROR expected one of
|
|
}
|
|
fn i() {
|
|
foo::<bar::<i32>() + BAR>(); //~ ERROR expected one of
|
|
}
|
|
fn j() {
|
|
foo::<bar::<i32>() - BAR>(); //~ ERROR expected one of
|
|
}
|
|
fn k() {
|
|
foo::<BAR - bar::<i32>()>(); //~ ERROR expected one of
|
|
}
|
|
fn l() {
|
|
foo::<BAR - bar::<i32>()>(); //~ ERROR expected one of
|
|
}
|
|
|
|
const fn bar<const C: usize>() -> usize {
|
|
C
|
|
}
|
|
|
|
fn main() {}
|