🚀 go-pugleaf

It is not valid in ANSI C++ to modify strings ("...").  Your program does.

> Message-Id: <9208261811.AA11644@poincare.phys.cmu.edu>
> To: bug-g++@prep.ai.mit.edu
> Cc: keister@poincare.phys.cmu.edu, lambert@mamba.psc.edu
> Date: Wed, 26 Aug 92 14:11:38 -0400
> From: "Bradley D. Keister" <keister@poincare.phys.cmu.edu>

> 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]