c++模板函数

没用模板

#include <iostream>

using namespace std;

double myadd(double a,double b)

{

    return a + b ;

}

int myadd(int a,int b)

{

    return a + b ;

}

int main()

{

    double a = 12.5;

    double b = 30;

    cout << myadd(a,b) << endl;

    return 0;

}

用了模板

#include <iostream>

using namespace std;

template < class T>

T myadd(T a,T b)

{

    return a + b ;

}

int myadd(int a,int b)

{

    return a + b ;

}

int main()

{

    double a = 12.5;

    double b = 30;

    cout << myadd(a,b) << endl;

    return 0;

}