I noticed you have 8 link about the subject of bases and conversion. That's really overkill, as there is only 2 types. General purpose, and the fast method for 2^x bases. This subject gets asked quite alot, and it's really easy. Why not add some code?
using namespace std;
static char table = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXZ";
int input = 150; // choose a number, any number
int base = 8; // choose a base <= 32
while (input != 0)
output.insert(output.begin(), table[input % base]);
cout << output << endl;