summaryrefslogtreecommitdiffstats
path: root/src/test/ui/borrowck/immutable-arg.rs
diff options
context:
space:
mode:
Diffstat (limited to 'src/test/ui/borrowck/immutable-arg.rs')
-rw-r--r--src/test/ui/borrowck/immutable-arg.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/immutable-arg.rs b/src/test/ui/borrowck/immutable-arg.rs
new file mode 100644
index 000000000..2352d1bbe
--- /dev/null
+++ b/src/test/ui/borrowck/immutable-arg.rs
@@ -0,0 +1,6 @@
+fn foo(_x: u32) {
+ _x = 4;
+ //~^ ERROR cannot assign to immutable argument `_x`
+}
+
+fn main() {}