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Diffstat (limited to 'tests/ui/consts/array-repeat-expr-not-const.rs')
| -rw-r--r-- | tests/ui/consts/array-repeat-expr-not-const.rs | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tests/ui/consts/array-repeat-expr-not-const.rs b/tests/ui/consts/array-repeat-expr-not-const.rs index 1b101d3233f..55aee7336da 100644 --- a/tests/ui/consts/array-repeat-expr-not-const.rs +++ b/tests/ui/consts/array-repeat-expr-not-const.rs @@ -1,7 +1,9 @@ -// Check that non constant exprs fail for array repeat syntax +//! Arrays created with `[value; length]` syntax need the length to be known at +//! compile time. This test makes sure the compiler rejects runtime values like +//! function parameters in the length position. fn main() { - fn bar(n: usize) { + fn create_array(n: usize) { let _x = [0; n]; //~^ ERROR attempt to use a non-constant value in a constant [E0435] } |