Padding stl strings in C++

Question

I\'m using std::string and need to left pad them to a given width. What is the recommended way to do this in C++?

Sample input:

123
         


        

Answer 1

Minimal working code:

#include 
#include 

int main()
{
    for(int i = 0; i < 300; i += 11)
    {
        std::cout << std::setfill ( ' ' ) << std::setw (2) << (i % 100) << std::endl;
    }
    return 0;
}

/*
Note:
- for std::setfill ( ' ' ):
  - item in '' is what will be used for filling
- std::cout may be replaced with a std::stringstream if you need it
- modulus is used to cut the integer to an appropriate length, for strings use substring
- std::setw is used to define the length of the needed string
*/