[deliverable/binutils-gdb.git] / gdb / testsuite / gdb.cp / class2.cc

/* This testcase is part of GDB, the GNU debugger.

   Copyright 2003-2016 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

struct A
{
  virtual ~A ();
  int a1;
};

A::~A()
{
  a1 = 800;
}

struct B : public A
{
  virtual ~B ();
  int b1;
  int b2;
};

B::~B()
{
  a1 = 900;
  b1 = 901;
  b2 = 902;
}

struct C : public B
{
  A *c1;
  A *c2;
};

/* Use a typedef for the baseclass, with a virtual method, to exercise
   gnu-v3-abi.c:gnuv3_dynamic_class recursion.  It's important that the
   class itself have no name to make sure the typedef makes it through
   to the recursive call.  */
typedef class {
 public:
  /* This class has no members as gcc 4.9.x doesn't emit the debug info
     for them.  */
  virtual int get () { return 42; }
} Dbase;

class D : public Dbase
{
 public:
  int d1;
};

// Stop the compiler from optimizing away data.
void refer (A *)
{
  ;
}

struct empty {};

// Stop the compiler from optimizing away data.
void refer (empty *)
{
  ;
}

int main (void)
{
  A alpha, *aap, *abp, *acp;
  B beta, *bbp;
  C gamma;
  D delta;
  empty e;
  A &aref (alpha);

  alpha.a1 = 100;
  beta.a1 = 200; beta.b1 = 201; beta.b2 = 202;
  gamma.c1 = 0; gamma.c2 = (A *) ~0UL;
  delta.d1 = 400;

  aap = &alpha; refer (aap);
  abp = &beta;  refer (abp);
  bbp = &beta;  refer (bbp);
  acp = &gamma; refer (acp);
  refer (&e);

  return 0;  // marker return 0
} // marker close brace
Commit	Line	Data
	1	/* This testcase is part of GDB, the GNU debugger.
	2
	3	Copyright 2003-2016 Free Software Foundation, Inc.
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 3 of the License, or
	8	(at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	17
	18	struct A
	19	{
	20	virtual ~A ();
	21	int a1;
	22	};
	23
	24	A::~A()
	25	{
	26	a1 = 800;
	27	}
	28
	29	struct B : public A
	30	{
	31	virtual ~B ();
	32	int b1;
	33	int b2;
	34	};
	35
	36	B::~B()
	37	{
	38	a1 = 900;
	39	b1 = 901;
	40	b2 = 902;
	41	}
	42
	43	struct C : public B
	44	{
	45	A *c1;
	46	A *c2;
	47	};
	48
	49	/* Use a typedef for the baseclass, with a virtual method, to exercise
	50	gnu-v3-abi.c:gnuv3_dynamic_class recursion. It's important that the
	51	class itself have no name to make sure the typedef makes it through
	52	to the recursive call. */
	53	typedef class {
	54	public:
	55	/* This class has no members as gcc 4.9.x doesn't emit the debug info
	56	for them. */
	57	virtual int get () { return 42; }
	58	} Dbase;
	59
	60	class D : public Dbase
	61	{
	62	public:
	63	int d1;
	64	};
	65
	66	// Stop the compiler from optimizing away data.
	67	void refer (A *)
	68	{
	69	;
	70	}
	71
	72	struct empty {};
	73
	74	// Stop the compiler from optimizing away data.
	75	void refer (empty *)
	76	{
	77	;
	78	}
	79
	80	int main (void)
	81	{
	82	A alpha, aap, abp, *acp;
	83	B beta, *bbp;
	84	C gamma;
	85	D delta;
	86	empty e;
	87	A &aref (alpha);
	88
	89	alpha.a1 = 100;
	90	beta.a1 = 200; beta.b1 = 201; beta.b2 = 202;
	91	gamma.c1 = 0; gamma.c2 = (A *) ~0UL;
	92	delta.d1 = 400;
	93
	94	aap = α refer (aap);
	95	abp = β refer (abp);
	96	bbp = β refer (bbp);
	97	acp = γ refer (acp);
	98	refer (&e);
	99
	100	return 0; // marker return 0
	101	} // marker close brace