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[rust.git] / tests / ui / cstring.rs

diff --git a/tests/ui/cstring.rs b/tests/ui/cstring.rs
index 5fe915a836890bb1d42d344fd2b8fbcad86036bb..6cdd6b4ff6e77671afb525e01d9f5398ad536a0e 100644 (file)
--- a/tests/ui/cstring.rs
+++ b/tests/ui/cstring.rs
@@ -1,17 +1,24 @@
-// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution.
-//
-// 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.
+#![deny(clippy::temporary_cstring_as_ptr)]
 
 fn main() {}
 
-#[allow(clippy::result_unwrap_used)]
 fn temporary_cstring() {
     use std::ffi::CString;
 
     CString::new("foo").unwrap().as_ptr();
+    CString::new("foo").expect("dummy").as_ptr();
+}
+
+mod issue4375 {
+    use std::ffi::CString;
+    use std::os::raw::c_char;
+
+    extern "C" {
+        fn foo(data: *const c_char);
+    }
+
+    pub fn bar(v: &[u8]) {
+        let cstr = CString::new(v);
+        unsafe { foo(cstr.unwrap().as_ptr()) }
+    }
 }