Recognising template typename in runtime

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I am in need for your expert help with this little code bellow:

    template<typename T> void print_element(T t)
{
    int width;
    if(pre_def_const+2 < 8) width=8;
    else width = pre_def_const+2;

    cout << left << setw(width) << setfill(' ') << t;
}

This function will receive only doubles and string parameters and I want to be able to diferentiate between each case.

In short I want to add something like this to that code above:

if(T==double) ...
if(T==string) ...

I need this to test for doubles being smaller than zero. Thank you!

asked 45 secs ago

ivbc

1

Recognising template typename in runtime