export function using template

[J2Int]

Hi,

i like to make the pBuf array type generic like double or int and so. I tried it but was getting various errors. like Fnc not defined in .def.


In header I got:

__declspec(dllexport) void __stdcal My Fnc(int *pBuf);

.cpp:
__declspec(dllexport) void __stdcal My Fnc(int *pBuf)
{
//do stuff with the array
retutn 0;
}

also got .def.

[2kaud]

With templates, you cannot split function definition and function body across different compile units. They need to be in the same file.

[tony22]

It looks like you're trying to make the array type generic but running into some issues with the function declaration. If you want to use a generic type like int or double for pBuf, you can template the function.
template <typename T>
__declspec(dllexport) void __stdcall MyFnc(T* pBuf)
{
// Do stuff with the array
}

[J2Int]

Due to the tool that uses the API I have to include the MyFunc in the def file. When doing so, using the above approach compiler complains about including the undefined name in def file.
So, i did this in header:

template <typename T>
void MyFnc(T* pBuf)
{
// Do stuff with the array
} 

__declspec(dllexport) void __stdcall MyFncDbl(double* pBuf)
{
   return MyFnc(pBuf);
}

etc.
I included MyFncDbl in the def file.
Is this acceptable?.