[Boost-users] RunTime error + lexical_cast + string with space

All, I noticed the below crashes[run time error because of space in string] Is there a possibility to handle this situation? [without explicitly calling split] string s = " 12252001"; int offsets[] = {5,2,4}; offset_separator f(offsets, offsets+3); tokenizer tok(s,f); for(tokenizer::iterator beg=tok.begin(); beg!=tok.end();++beg) int val = boost::lexical_cast<int>( *beg); Thanks UJ