From: Robert Vila <rv3 AT acpub DOT duke DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: STRING problems!
Date: Tue, 28 Apr 1998 17:40:19 -0400
Organization: Duke University
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References: <35462A31 DOT 4E83C790 AT acpub DOT duke DOT edu> <3546360D DOT 7114 AT cs DOT com>
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I think I may have identified the problem. I don't think any C++ programs
compile. I tried to compile something with the vector class and that gave me
the same kind o ferrors. Any ideas? I noticed that I do not have gxx. I have
gpp, and i'm not sure what the difference is. I know i downloaded everything
and unzipped correctly, or so i thought. any other ideas?


Here is the stuff you requested. Here is my test program

#include <iostream.h>
#include <string.h>

int main()
{
    string word = "test";
    cout << test << endl;
    return 0;
}

Keep in mind that I have messed around with the details of this
implementation, such as changing #include <string.h> to #include <_string.h>
and chaging "string" to "String" and stuff like that as was suggested. Here
is the results of redirecting the compile information to a file...

c:/djgpp/tmp/ccaaaaaa1.o(.text+0x24):test.cpp: undefined reference to
`String::String(char const *)'
c:/djgpp/tmp/ccaaaaaa1.o(.text+0x3c):test.cpp: undefined reference to
`operator<<(ostream &, String const &)'
c:/djgpp/tmp/ccaaaaaa1.o(.text+0x57):test.cpp: undefined reference to
`String::~String(void)'
c:/djgpp/tmp/ccaaaaaa1.o(.text+0x7b):test.cpp: undefined reference to
`String::~String(void)'

And to answer these questions....

> 1) Can you compile C programs?

Yes.

> 2) Can you compile C++ programs that use other headers besides
> _string.h?

Now that I check, no.

> 3) Can you compile from DOS?

Yes

> 4) If you get undefined references, are you linking the C++ libraries
> when you compile (RHIDE should do this automatically)?

I compiled with RHIDE, and that didn't happen

> 5) Are you spelling #include correctly?  (Don't laugh; somebody did this
> earlier.)

Yessir

> 6) Have you made any changes to your 'djgpp.env'?

Nope