Path: utzoo!utgpu!attcan!uunet!ncrlnk!fenix!tek
From: tek@fenix.Atlanta.NCR.COM (Tom Klempay)
Newsgroups: comp.lang.c++
Subject: Re: Global constructors and C++ I/O streams;  problems and questions.
Summary: Works with Zortech C++ (kind of)
Message-ID: <386@fenix.Atlanta.NCR.COM>
Date: 21 Oct 88 15:20:08 GMT
References: <5955@columbia.edu>
Organization: NCR Systems Engineering - Retail / Atlanta
Lines: 40

In article <5955@columbia.edu>, beshers@select.columbia.edu (Clifford Beshers) writes:
> The following program suffers a memory fault before it ever gets
> to the first line of main().  The problem lies in the constructor
> of the global instance 'example hello';  the reference to the
> cout stream occurs before the initialization of that stream.
> <some stuff deleted>
> 
> #include <stream.h>
> class example {
> public:
> 	example()
> 	{
> 		cout << "Hello, world\n";
> 	}
> };
> //  Comment out this line and it works, of course.
> example hello;
> main()
> {
> 	cout << "We never get to the first line...\n";
> }

Just to further muddy the waters, I just tried this with Zortech C++
(1.05), and the output is :

c>foo
We never get to the first line...

c>

It compiles fine (i.e. at least there were no errors or warnings :-), but, as 
shown above, it ignores the constructor output when "hello" is globally 
declared.  Something strange going on here since it bombs on you but works 
(somewhat) for me.


Tom Klempay - NCR SE-Retail     |   #ifndef _DISCLAIMER
Atlanta, GA                     |   #include <disclaimer.std> 
tek@fenix.atlanta.ncr.com       |   #endif     
...!ncrlnk!fenix!tek            |