Re: cons with c++

[rick . croote]

Yes, you never specified that Configuration.cpp
was part of the project.  Cons does not magically go out and find
source code to compile.  Try:

Program $env 'Configuration', 'tConfiguration.cpp',
'..\classes\Configuration.cpp';

---
Rick Croote
Software Engineer
Environment and Tools Team
Philips Medical Systems
Bothell, WA
address@hidden
Phone: 425-487-7834

Daniel Graupner <address@hidden> 01/25/2005 01:57 PM

To:        Rick Croote/ATL-BTL/MS/address@hidden         cc:        address@hidden         Subject:        Re: cons with c++         Classification:

Let me try to describe the situation a bit more precisely
;-)

my directory structure

classes
  Configuration.h
  Configuration.cpp
test
  tConfiguration.cpp #the Programm to test the class
  Construct

Construct contains:
$env = new cons(
         CC      => "g++",
         CPPPATH => "/usr/local/include/:../classes/",
         LIBPATH => "/usr/local/lib/",
         LIBS    => "-lxerces-c",
);
Program $env 'Configuration', 'tConfiguration.cpp';

If I call "cons Configuration" in the test directory than
g++ -I/usr/local/include -I/root/studarb/devel/include/classes -c tConfiguration.cpp
-o tConfiguration.o
g++ -o Configuration tConfiguration.o -L/usr/local/lib -lxerces-c
tConfiguration.o(.text+0x136): In function `main':
: undefined reference to `Configuration::Configuration()'
tConfiguration.o(.text+0x170): In function `main':
: undefined reference to `Configuration::parseFile(std::string)'
tConfiguration.o(.text+0x1d5): In function `main':
: undefined reference to `Configuration::~Configuration()'
tConfiguration.o(.text+0x1f0): In function `main':
: undefined reference to `Configuration::~Configuration()'
cons: *** [Configuration] Error 1
cons: errors constructing Configuration


The undefined references are from the class "Configuration" which
has currently only 3 functions 
(constructor, destructor and parseFile).

Cons never included the class body therefore the errors, I suppose.

This is the command which usually works for me
g++ -I /usr/local/include -L/usr/local/lib/ -lxerces-c -o Configuration
../classes/Configuration.cpp 
tConfiguration.cpp


Regads,
Daniel.



address@hidden schrieb:
> 
> What you describe, of course, is the common practice, and rest assured
> Cons has no difficulty compiling C++ code.  Our code base that
has 
> exceeded 7000 CPP files, and at least that in H files, for years.
 The 
> problem is that you have not provided enough information for us to
> really help further.  Your statement of undefined references
leads me to 
> believe that you have a linked target that is not specifying the 
> expected object files.
> 
> ---
> Rick Croote
> Software Engineer
> Environment and Tools Team
> Philips Medical Systems
> Bothell, WA
> address@hidden
> Phone: 425-487-7834
> 
> 
> 
>                  
> 
> 
> 
> 
> *Daniel Graupner <address@hidden>*
> 
> Sent by:
> address@hidden
> 
> 01/25/2005 01:04 PM
> 
>                  
      
>         To:        address@hidden
>         cc:        (bcc: Rick
Croote/ATL-BTL/MS/PHILIPS)
>         Subject:        cons
with c++
> 
>         Classification:        
> 
> 
> 
> 
> Hello,
> 
> I want to use cons with C++ but have some problems.
> 
> I divided my C++Classes in *.h and *.cpp files. The *.h includes the
> class definition, the *.cpp the
> body of the class and includes the corresponding *.h.
> 
> In the main program i include the *.h of the class, thats the usual
> practice I thing. Cons is not
> able to resolve the class!! Cons does not compile the body of the
> class...so there are errors with
> undefined references.
> 
> Thanks for Help,
> Daniel.
> 
> 
> _______________________________________________
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> http://lists.gnu.org/mailman/listinfo/cons-discuss
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>