From 318a10e9067408b0010804fe80c9dc99f3ad8c65 Mon Sep 17 00:00:00 2001
From: varkor <github@varkor.com>
Date: Thu, 18 Apr 2019 00:30:27 +0100
Subject: [PATCH] Add a test for unused const parameters

---
 src/test/ui/const-generics/unused-const-param.rs     | 8 ++++++++
 src/test/ui/const-generics/unused-const-param.stderr | 6 ++++++
 2 files changed, 14 insertions(+)
 create mode 100644 src/test/ui/const-generics/unused-const-param.rs
 create mode 100644 src/test/ui/const-generics/unused-const-param.stderr

diff --git a/src/test/ui/const-generics/unused-const-param.rs b/src/test/ui/const-generics/unused-const-param.rs
new file mode 100644
index 0000000000000..ee98e5eb4a01f
--- /dev/null
+++ b/src/test/ui/const-generics/unused-const-param.rs
@@ -0,0 +1,8 @@
+// run-pass
+
+#![feature(const_generics)]
+//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+
+struct A<const N: usize>; // ok
+
+fn main() {}
diff --git a/src/test/ui/const-generics/unused-const-param.stderr b/src/test/ui/const-generics/unused-const-param.stderr
new file mode 100644
index 0000000000000..0e7acfb673d1d
--- /dev/null
+++ b/src/test/ui/const-generics/unused-const-param.stderr
@@ -0,0 +1,6 @@
+warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+  --> $DIR/unused-const-param.rs:3:12
+   |
+LL | #![feature(const_generics)]
+   |            ^^^^^^^^^^^^^^
+