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// Test PR 17400.  Test case provided by Serge Belyshev.
 
/* { dg-do compile } */
/* { dg-options "-O1" } */
 
 
void inc (int &);
bool dec_test (int &);
 
struct A
{
  int c;
 
  friend void AddRef (A * p)
  {
    inc (p->c);
  }
 
  friend void Release (A * p)
  {
    if(dec_test (p->c))
      delete p;
  }
};
 
struct B
{
  B (A *p) : obj(p)
  {
    AddRef (obj);
  }
 
  ~B()
  {
    Release (obj);
  }
 
  void swap (B &rhs)
  {
    A * tmp = obj;
    obj = rhs.obj;
    rhs.obj = tmp;
  }
 
  A *obj;
};
 
void bar (A *p1, A* p2)
{
    B px (p1);
    B px2 (p2);
    px.swap (px2);
}

Line No.	Rev	Author	Line
1	149	jeremybenn	`// Test PR 17400. Test case provided by Serge Belyshev.`
2
3			`/* { dg-do compile } */`
4			`/* { dg-options "-O1" } */`
5
6
7			`void inc (int &);`
8			`bool dec_test (int &);`
9
10			`struct A`
11			`{`
12			`int c;`
13
14			`friend void AddRef (A * p)`
15			`{`
16			`inc (p->c);`
17			`}`
18
19			`friend void Release (A * p)`
20			`{`
21			`if(dec_test (p->c))`
22			`delete p;`
23			`}`
24			`};`
25
26			`struct B`
27			`{`
28			`B (A *p) : obj(p)`
29			`{`
30			`AddRef (obj);`
31			`}`
32
33			`~B()`
34			`{`
35			`Release (obj);`
36			`}`
37
38			`void swap (B &rhs)`
39			`{`
40			`A * tmp = obj;`
41			`obj = rhs.obj;`
42			`rhs.obj = tmp;`
43			`}`
44
45			`A *obj;`
46			`};`
47
48			`void bar (A p1, A p2)`
49			`{`
50			`B px (p1);`
51			`B px2 (p2);`
52			`px.swap (px2);`
53			`}`

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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [g++.dg/] [tree-ssa/] [pr17400.C] - Blame information for rev 154