Is there a trunc function in C++?

Question

I searched around and couldn\'t find the trunc function for C++. I know I can do this:

int main()
{
    double a = 12.566789;
    cout <<          


        

Answer 1

Sure. Use the trunc() function from math.h. It's a C function, but it works as well in C++ as it does in C. If you want to keep a couple digits, you can always:

double a = 12.566789;
double b = trunc(a * 100) / 100.0;