[boost] character set used in boost serialization

Hi, I am using boost serialization text_oarchive to serialize data objects into text strings, and then I need to delimit several of these serialized strings and concatenate them into an ascii text. So obvious I want to choose a delimiter (currently using 0x01) not used by boost serialization. My question is how do I find the character set used by boost serialization so that whatever I choose for my delimiter would not shows up in text_oarchive's result? Thx. --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.