linalg.cpp

#include <linalg.h>
#include <shogun/lib/SGVector.h>

using namespace shogun;

template <class T>
struct GPUVector<T>::GPUArray
{
    GPUArray(){}
};

template <class T>
GPUVector<T>::GPUVector(const SGVector<T> &vector) : gpuarray(std::unique_ptr<GPUArray>(new GPUVector<T>::GPUArray()))
{
}

linalg.h

#ifndef LINALG_H_
#define LINALG_H_

#include <memory>

namespace shogun
{

template <typename T> class SGVector;

template <typename T>
struct BaseVector
{
};

template <class T>
struct GPUVector : public BaseVector<T>
{
	GPUVector(const SGVector<T>& orig);
private:
    struct GPUArray;
    std::unique_ptr<GPUArray> gpuarray;
};

}

#endif

output

[lambday@lambday.iitb.ac.in oxphos]$ g++ -c -std=c++11 -I. linalg.cpp -lshogun
[lambday@lambday.iitb.ac.in oxphos]$ echo $?
0