[galib] VS2005 Linker Errors with GARealAllele

[Steven Bilton]

Hey,

I'm having issues compiling the library under VS2005 when using the 
GARealAllele. I've read about a few problems that relate to requiring 
casts, but I'm not really sure where they would be needed.

The errors I get are an array of linker errors when including 
GARealGenome.h along the lines of:

6>GARealGenome.obj : error LNK2005: "public: float __thiscall 
GAAlleleSet<float>::allele(void)const " 
(?allele@?$GAAlleleSet at M@@QBEMXZ) already defined in MyClass.obj

Not including GARealGenome.h of course then causes it to default to the 
definition in GAAllele.C to be used, giving the undefined 
allele(unsigned int) error and breaking it.

At present, it will not compile with the following:

------------------

#include "ga/MyClass.h"                  // Has no GA related headers 
inside.
#include "ga/ga.h"
#include "ga/GARealGenome.h"
#include "console/console.h"           // Used for other stuff not 
related to GA
#include "game/shapeBase.h"         // Used for other stuff not related 
to GA
#include <windows.h>                  // Used for other stuff not 
related to GA

#define INSTANTIATE_REAL_GENOME

float fitnessFunction(GAGenome& g)
{
    return 0;
}

void MyClass::run()
{
    GARealAlleleSetArray alleles;
    alleles.add(0,1);
    GARealGenome genome(alleles, fitnessFunction);
}

------------------

Any pointers appreciated.

Cheers
Steve