Numeric base conversions

/**
 * C++ numeric base conversions
 *
 * - sangf
 */

#include
#include
#include

#if INT_MAX == 2147483647 && UINT_MAX == 4294967295
    typedef int int_32t;
    typedef unsigned int uint_32t;
#elif LONG_MAX == 2147483647 && ULONG_MAX == 4294967295
    typedef int int_32t;
    typedef unsigned int uint_32t;
#else
#   error 32-bit integers required for this code
#endif


static const char *base_lookup = \"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ\";
std::string dec_to_base(int_32t number, int_32t base);

std::string dec_to_base(int_32t number, int_32t base)
{
    if (base = 37) throw;
    else
    {
        bool negative = false;
        if (number < 0)
        {
            number -= (number * 2); // negation
            negative = true;
        }
        std::string hex_int_32t;
        int result = number, remain = 0;
        do
        {
            number = number / base; // division result
            remain = result % base; // remainder result
            result = number;
            hex_int_32t.insert(0, 1, base_lookup[remain]);

        } while (result != 0);

        if (negative) hex_int_32t.insert(0, 1, \'-\');
        return hex_int_32t;
    }
}