Template does not work when it is not in the main class-CodePudding

I have tried using a template in a class but it works in the main class.

Here is my main class:

#include "AddSubtract.cpp"
#include <iostream>
#include <string>

using namespace std;

int main() {
    templEx();
}

And here is the class where the template is located:

#include <iostream>

#include <string>

using namespace std;

template<typename T>
void Print(T value)
{
    std::cout << value << std::endl;
}

void templEx() {
    Print("Venezuela");
}

And here are the errors which I get:

Severity Code Description Project File Line Source Suppression State Error LNK2005 "void __cdecl templEx(void)" (?templEx@@YAXXZ) already defined in AddSubtract.obj ConsoleApplication1 C:\Users\bahge\source\repos\ConsoleApplication1\ConsoleApplication1\Source1.obj 1 Build

Severity Code Description Project File Line Source Suppression State Error LNK1169 one or more multiply defined symbols found ConsoleApplication1 C:\Users\bahge\source\repos\ConsoleApplication1\x64\Debug\ConsoleApplication1.exe 1 Build

CodePudding user response：

You're compiling that code that defines tmplEx once in the main.cpp and additionally in the secondary source file, which leads to the conflict.

Define the template in a separate header file that both can #include as necessary.