Formatting output in C++

Question

In a C++ code I have a matrix of double variables which I print out. However because all of them have different number of digits, the output format is destroyed. One solutio

Answer 1

There is a way using i/o manipulators, but I find it unwieldy. I would just write a function like this:

template
std::string RightAligned(int size, const T & val)
{
    std::string x = boost::lexical_cast(val);
    if (x.size() < size)
        x = std::string(size - x.size(), ' ') + x;
    return x;
}