ATL / WTL / STL

#include <vector>
#include <string>

std::vector< std::string > parseString(const std::string& strin)
{
    std::string str = strin;
    std::vector< std::string > words;
    size_t splt = str.find("~");

    while(splt != string::npos)
    {
        string out = str.substr(0,splt);
        words.push_back( out );
        str = str.substr(splt+1,str.length());
        splt = str.find("~");
    }
    words.push_back( str );
    return words;
}

#include <iostream>
#include <sstream>

int main()
{
    std::istringstream iss("12#34#56#78#90#ab");
    std::string I1,I2,I3,I4,I5,I6;

    std::getline(iss,I1,'#');
    std::getline(iss,I2,'#');
    std::getline(iss,I3,'#');
    std::getline(iss,I4,'#');
    std::getline(iss,I5,'#');
    std::getline(iss,I6,'#');

    return 0;
}