Should I perform my functions as general as possible?

Question

template<class T>
void swap(T &a, T &b)
{
    T t;

    t = a; 
    a = b;
    b = t;
}

replace

void swap(int &a, int &b)
{
    int t;

    t = a;
    a = b;
    b = t;
}

This is the simplest example I could come up with, but there should be many other complex functions. Should I use all the methods that I can write, if possible?

Any flaws to do this?

thank.

Answer 1

The advantage is that it can be reused. However, write general things only if:

• It doesn’t take much time than to do it is not common
• This doesn't complicate the code anymore than a general solution.
• You know that it will benefit later.

However, know the standard library . The case you presented is already in STL as std::swap.

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