1 // { dg-do compile }
2 class A {
3   virtual unsigned long write(const char *, unsigned long);
4 };
5 char *a;
6 int b;
7 bool c;
8 char e[16];
9 class B {
10 public:
11   void push_range(const char *);
12 };
13 class C : A {
14   B m_string;
15 
16 public:
write(const char * p1,unsigned long p2)17   unsigned long write(const char *p1, unsigned long p2) {
18     m_string.push_range(p1 + p2);
19     return 0;
20   }
21 };
write_signed_decimal_backward(bool)22 char *write_signed_decimal_backward(bool) {
23   char *d = 0;
24   if (b) {
25     if (c)
26       --a;
27     d = a;
28   }
29   return d;
30 }
31 
32 template <typename TextOutputStreamType>
ostream_write(TextOutputStreamType & p1)33 void ostream_write(TextOutputStreamType &p1) {
34   char *f = write_signed_decimal_backward(false);
35   p1.write(f, e - f);
36 }
37 
38 void operator<<(C p1, int) { ostream_write(p1); }
39