1 files changed, 41 insertions, 0 deletions
diff --git a/src/test/ui/compile-fail-migration/variadic-ffi.rs b/src/test/ui/compile-fail-migration/variadic-ffi.rs
new file mode 100644
index 00000000000..f245306f4d8
--- /dev/null
+++ b/src/test/ui/compile-fail-migration/variadic-ffi.rs
@@ -0,0 +1,41 @@
+// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-arm stdcall isn't suppported
+// ignore-aarch64 stdcall isn't suppported
+
+extern "stdcall" {
+    fn printf(_: *const u8, ...); //~ ERROR: variadic function must have C or cdecl calling
+}
+
+extern {
+    fn foo(f: isize, x: u8, ...);
+}
+
+extern "C" fn bar(f: isize, x: u8) {}
+
+fn main() {
+    // errors below are no longer checked because error above aborts
+    // compilation; see variadic-ffi-3.rs for corresponding test.
+    unsafe {
+        foo();
+        foo(1);
+
+        let x: unsafe extern "C" fn(f: isize, x: u8) = foo;
+        let y: extern "C" fn(f: isize, x: u8, ...) = bar;
+
+        foo(1, 2, 3f32);
+        foo(1, 2, true);
+        foo(1, 2, 1i8);
+        foo(1, 2, 1u8);
+        foo(1, 2, 1i16);
+        foo(1, 2, 1u16);
+    }
+}