* virtual table referencing error.
@ 1998-04-06 17:35 Ruslan Shevchenko
0 siblings, 0 replies; only message in thread
From: Ruslan Shevchenko @ 1998-04-06 17:35 UTC (permalink / raw)
To: egcs
egcs sometimes not generate virtual tables in templatest.
I just strip my 2000-lines test to 167:
(olso in attachment)
#include ?iostream>
using namespace std;
template?class T>
class E;
template ?class T>
class A
{
public:
typedef E?T> e_type;
public:
virtual void x(void) = 0;
virtual e_type* get_e(void) = 0;
};
template ?class T1,class T2,class T3>
class B: virtual public A?T2>
{
public:
typedef A?T2>::e_type e_type;
virtual void x(void) { cout ?? "B::x\n"; }
virtual void y(void) { cout ?? "B::y\n"; }
virtual e_type* get_e(void);
};
template ?class T>
class E
{
public:
virtual void xx(void) = 0;
};
template?class T1, class T2, class T3>
class EB: virtual public E?T2>
{
public:
virtual void xx(void) { cout ?? "EB::xx" ?? endl; }
};
template ?class T1, class T2, class T3>
B?T1,T2,T3>::e_type* B?T1,T2,T3>::get_e()
{
return new EB?T1,T2,T3>;
}
template ?class T>
struct C
{
};
class D: virtual public B?C?int>,int,int>
{
public:
typedef B::e_type e_type;
virtual void x(void) { cout ?? "D::x" ?? endl; }
};
class D1: virtual public B?C?int>,int,int>,
virtual public D
{
};
int main(void)
{
B?C?int>,int,int> b;
D x1;
D x2;
return 0;
}
than:
goblin:$ gcc t8.cc -lstdc++
Undefined first referenced
symbol in file
EB?C?int>, int, int>::E?int> virtual table/usr/tmp/cca006xm1.o
a.out: fatal error: Symbol referencing errors. No output written to
a.out
collect2: ld returned 1 exit status
goblin:$
--
@=
//RSSH mailto:Ruslan@Shevchenko.Kiev.UA
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