Re: Program crashes at end

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#452

From: gbayles
Date: Tue, 28 May 2002 13:10

29 lines
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"SKAS" <f93c0532@yahoo.com> wrote in message news:<acv9rh$sopon$1@ID-31123.news.dfncis.de>...
> I've written a class for string datatype.  

Presumably as a learnng exercise.

> ... The program runs fine but crashes in the end.

IME, this usually means the dtor is accessing invalid memory.

> class string
> {
>  private:
>       char *head;
>       int len;
>  public:
>       string()
>    {
>    }

Always initialize member variables in every ctor. This one allows
you to declare a string with unpredictable values for head and len.
 
>   ~string()
>   {
>      delete head;
>   }

So it can blow up here when the object is destroyed as the program
exits.

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From: gbayles2001@yahoo.com (gbayles)
Newsgroups: alt.comp.lang.learn.c-c++,borland.public.cpp.turbocpp,comp.lang.c++
Subject: Re: Program crashes at end
Date: 28 May 2002 06:10:24 -0700
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