#include <iostream>
#include <string>
using namespace std;

int main()
{
    unsigned long a=1928;
    string b=string(b);

    return 0;
}

MfG
Stromberg

Felix

string b = string(a);

...gemeint?!
Wie auch immer:

#include <iostream>
#include <string>
#include <sstream>
using namespace std;

string IntToString(int value)
{
	ostringstream oss;
	oss << value;
	return oss.str();
}

int StringToInt(const string& _string)
{
	istringstream iss;
	iss.str(_string);
	int value;
	iss >> value;
	return value;
}

int main()
{
	cout << IntToString(3) + "b" << endl;
	cout << StringToInt("5") + 1 << endl;
}

MfG

Gruß,

Simon2.