Ceil function: how can we implement it ourselves?

Question

I know that C++ provides us with a ceil function. For practice, I was wondering how can we implement the ceil function in C++. The signature of the method is public static

Answer 1

Try this...

int ceil(float val)
{
    int temp  = val * 10;
    if(val%10)
    return (temp+1);
    else
    return temp;
}