Internal error: Segmentation fault on gcc 3.0

[Gustavo Romero López <gustavo at geneura dot ugr dot es>]

Hi,

Hope this help.


GCC version
-----------
fraguel:~/eo/bug$ /usr/local/gcc-3.0/bin/g++ -v
Reading specs from
/usr/local/gcc-3.0/lib/gcc-lib/i686-pc-linux-gnu/3.0/specs
Configured with: ./configure --prefix=/usr/local/gcc-3.0
Thread model: single
gcc version 3.0


system type
-----------
fraguel:~/eo/bug$ /usr/local/gcc-3.0/bin/g++ -v
Reading specs from
/usr/local/gcc-3.0/lib/gcc-lib/i686-pc-linux-gnu/3.0/specs
Configured with: ./configure --prefix=/usr/local/gcc-3.0
Thread model: single
gcc version 3.0


complete command line that triggers the bug
-------------------------------------------
/usr/local/gcc-3.0/bin/g++ -I. -I../eo -Wall -g  -lm  p2o.cc   -o p2o


compiler output
---------------
/usr/local/gcc-3.0/bin/g++ -Wall -g  p2o.cc   -o p2o
p2o.cc: In function `int main()':
p2o.cc:57: warning: unused variable `eo<XY, float, fitness2, f2, true>
eo2'
p2o.cc:58: warning: unused variable `eo<XY, float, fitness3, f3, true>
eo3'
p2o.cc: In constructor `eo<A, B, C, c, d>::eo() [with A = XY, B = float,
C = 
   fitness2, C&c = f2, bool d = true]':
p2o.cc:57:   instantiated from here
p2o.cc:10: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
make: *** [p2o] Error 1


preprocessed file
-----------------
not attached because your mail queue only accepts emails < 400KB:
p2o.ii  p2o.s


options given when GCC was configured/built
-------------------------------------------
./configure --prefix=/usr/local/gcc-3.0


the (tiny) source code
----------------------
attached: p2c.cc

thanks for your time

Gustavo
-- 
Gustavo Romero López
Departamento de Arquitectura y Tecnología de Computadores
Universidad de Granada
#include <iostream>

using namespace std;

template <class A, class B, class C, C& c, bool d> class eo: public A
{
public:
  eo() 
  {
    cout << this->x << " " << this->y << " "
	 << c(*this) << " "
	 << ((d)?"true":"false") << endl;
  }
  
private:
  B b;
};

struct XY
{
  float x, y;

  XY(): x(1), y(0.1) {}
};

float fitness(const XY& a)
{
  return a.x + a.y;
}

struct fitness2
{
  float operator()(const XY& a)
  {
    return a.x - a.y;
  }
  
  float f(const XY& a)
  {
    return a.x - a.y;
  }
};

struct fitness3
{
  float operator()(const XY& a)
  {
    return a.x / a.y;
  }
};

fitness2 f2;
fitness3 f3;

int main()
{
  eo<XY, float, fitness2, f2, true> eo2;
  eo<XY, float, fitness3, f3, true> eo3;

  return 0;
}