🚀 go-pugleaf

The following code crashes at runtime when built with g++/Sun.  It
runs without trouble under g++/DECstation and CC/DECstation.

#include <stdio.h>
#include <string.h>

// #include "strup.h"

void strup(char* string)
{
  for (; *string; string++)
    *string = ((*string >= 'a') && (*string <= 'z'))?
    *string-0x20: *string;
}
class A {
  
protected:
  int a;
  
public:
  A() {a=1;}
};

class B : public A {
  
protected:
  int b;
  
public:
  B() {b=1;}
};

A* choose_class(char* keyword)
{
  A* result;
  strup(keyword);
  if (strcmp(keyword, "CLASS_A") == 0)
    result = new A;
  if (strcmp(keyword, "CLASS_B") == 0)
    result = new B;
  
  return result;
}

main()
{
  A* Atest = choose_class("class_B");
  delete Atest;
  return 0;
}

Segmentation fault (core dumped)
cm5comp.psc.edu% dbx declare
Reading symbolic information...
Read 194 symbols
program terminated by signal SEGV (access to address exceeded protections)
(dbx) run
Running: declare 
signal SEGV (access to address exceeded protections) in strup__FPc at 0x22f8
strup__FPc+0x68:	stb    	%o1, [%o0]

Brad Keister
Department of Physics
Carnegie Mellon University
Pittsburgh, PA 15213
(412) 268-2772 (office)
(412) 681-0648 (FAX)

internet:	keister@poincare.phys.cmu.edu
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