Visual Studio CudaLink: Undefined Reference

Accelerated Computing CUDA CUDA Programming and Performance
1

I separate a class source and kernel source in visual studio, however, i got undefined reference errors:

Error Undefined reference to ‘_ZN7TestOneC1Ev’ in ‘x64/Release/kernel.cpp.obj’ gp_gpu

testone.h
#pragma once

#include “cuda_runtime.h”

class TestOne {

public:
host device TestOne();
host device ~TestOne();
device virtual void AddOne(int a,int b,int& c);
host device TestOne* CreateOne();
int i;
};

testone.cpp
#include “testone.h”

host device TestOne::TestOne():i(10) {}

host device TestOne::~TestOne() {}
device void TestOne::AddOne(int a,int b,int& c) {
c=a + b;
i++;
}

host device TestOne* TestOne::CreateOne() {
return new TestOne;
}

kernel.cpp

… header file
#include “testone.h”

global void addKernel(TestOne** pone, int *c, const int *a, const int *b)
{
int i = threadIdx.x;
(*pone)->AddOne(a[i],b[i],c[i]);
if(*pone) printf("@%d-> %d \n ",threadIdx.x,(*pone)->i);
}

global void createObj(TestOne** pone)
{
if(threadIdx.x == 0 && blockIdx.x == 0) {
*pone= new TestOne;
}
if(*pone) printf("@%d-> %d \n ",threadIdx.x,(*pone)->i);
//return 0;
}

int main()
{
…
int dev_a = 0;
int dev_b = 0;
int dev_c = 0;
TestOne pone;
…
cudaMalloc((void*)&pone,sizeof(TestOne**));
createObj << <1,1 >> >(pone);
cudaDeviceSynchronize();
cudaMemcpy(*pone,&onecpu,1 * sizeof(TestOne),cudaMemcpyHostToDevice);
addKernel<<<1, size>>>(pone, dev_c, dev_a, dev_b);

return cudaStatus;

}

project:

<?xml version="1.0" encoding="utf-8"?> Release x64 {9BDE6162-4850-4C96-A24B-86B801D8D9AD} gp_gpu 10.0.16299.0 Application false true MultiByte v141 Level3 MaxSpeed true true WIN32;WIN64;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) true true true Console cudart_static.lib;kernel32.lib;user32.lib;gdi32.lib;winspool.lib;comdlg32.lib;advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;uuid.lib;odbc32.lib;odbccp32.lib;%(AdditionalDependencies) 64 true Static compile %(AdditionalDependencies)
2

tried to use cu file extension or add testone.cpp in cudacompile.

3

one more:
created a new cuda project with testone.h and testone.cpp, change output to lib,
build the new project and succussfully get lib file, however, using in the main project,
the class is not defined.

Error Undefined reference to ‘_ZN7TestOneC1Ev’ in ‘x64/Release/kernel.cpp.obj’