1  // Copyright 2019 The Go Authors. All rights reserved.
       2  // Use of this source code is governed by a BSD-style
       3  // license that can be found in the LICENSE file.
       4  
       5  #include "_cgo_export.h"
       6  
       7  void callIssue31891() {
       8      Issue31891A a;
       9      useIssue31891A(&a);
      10  
      11      Issue31891B b;
      12      useIssue31891B(&b);
      13  }