diff options
Diffstat (limited to 'src/test/ui/iterators/iter-cloned-type-inference.rs')
-rw-r--r-- | src/test/ui/iterators/iter-cloned-type-inference.rs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/test/ui/iterators/iter-cloned-type-inference.rs b/src/test/ui/iterators/iter-cloned-type-inference.rs new file mode 100644 index 000000000..898e33719 --- /dev/null +++ b/src/test/ui/iterators/iter-cloned-type-inference.rs @@ -0,0 +1,16 @@ +// run-pass +#![allow(stable_features)] + +// Test to see that the element type of .cloned() can be inferred +// properly. Previously this would fail to deduce the type of `sum`. + +#![feature(iter_arith)] + +fn square_sum(v: &[i64]) -> i64 { + let sum: i64 = v.iter().cloned().sum(); + sum * sum +} + +fn main() { + assert_eq!(36, square_sum(&[1,2,3])); +} |