🚀 go-pugleaf

	When "virtual public A" is replaced with "public A" in the
	following source code, the program executes as intended.
	With "virtual public A", the result is as shown below.


[2.51]lynx) cat test.cc 
 
#include <stream.h> 
 
class A { 
  int i; 
 public: 
  int j; 
 
  A(int val1, int val2) { i = val1; j = val2; } 
 
  virtual void describe(); 
}; 
 
class B : virtual public A { 
 public: 
  int k; 
 
  B(int i) : A(42,43) { k = i; } 
 
  virtual void describe(); 
}; 
 
 
void A::describe() 
{ 
  cout << "i = " << i << ", j = " << j << "\n"; 
} 
 
 
void B::describe() 
{ 
  cout << "k = " << k << ", "; 
  this->A::describe(); 
} 
 
 
A v1(10,20); 
A *p1 = &v1; 
B v3(30); 
B *p3 = &v3; 
 
main (int argc, char *argv[]) 
{ 
  A v2(30,40); 
  A* p2 = &v2; 
 
  p1->describe(); 
  p2->describe(); 
  p3->describe(); 
} 


[2.52]lynx) make -f test-makefile
/usr/local/gnu/1.36/bin/g++ -c -g -B/usr/local/gnu/1.36/lib/gcc-  -I/usr/local/gnu/1.36/lib/g++-include -v test.cc -o test.o 
gcc version 1.32 
 /usr/local/gnu/1.36/lib/gcc-cpp -+ -v -I/usr/local/gnu/1.36/lib/g++-include -undef -D__GNUC__ -Dmc68000 -Dsun -Dunix -D__mc68000__ -D__sun__ -D__unix__ -D__HAVE_68881__ -Dmc68020 test.cc /tmp/cca09791.cpp 
GNU CPP version 1.36 
 /usr/local/gnu/1.36/lib/gcc-cc1plus /tmp/cca09791.cpp -quiet -dumpbase test.cc -g -version -o /tmp/cca09791.s 
GNU C++ version 1.36.0- (based on GCC 1.35.99) (68k, MIT syntax) compiled by GNU C version 1.36. 
default target switches: -m68020 -mc68020 -m68881 -mbitfield 
 /usr/local/gnu/1.36/lib/gcc-as -mc68020 /tmp/cca09791.s -o test.o 
/usr/local/gnu/1.36/bin/g++ -g -B/usr/local/gnu/1.36/lib/gcc- -v test.o -o test; chmod 775 test 
gcc version 1.32 
 /usr/local/gnu/1.36/lib/gcc-ld -o test -e start -dc -dp -Bstatic /lib/crt0.o /lib/Mcrt1.o -L/usr/local/gnu/1.36/lib test.o -lg++ /usr/local/gnu/1.36/lib/gcc-gnulib -lg -lc 


[2.53]lynx) test 
i = 10, j = 20 
i = 30, j = 40 
i = 131168, j = 43 

 David Franke, MCC CAD Program | ARPA: franke@mcc.com | Phone: [512] 338-3641
 UUCP: {uunet,harvard,gatech,pyramid}!cs.utexas.edu!milano!cadillac!franke