From: Bronek Kozicki (brok_at_[hidden])
Date: 2004-02-22 16:20:52
It would be nice if tokenizer documentation clearly explains that
tokenizer constructor is not making a copy of its input data, thus
passing temporary value as first argument to its constructor invites
undefined behaviour. Following code can be given as an example of such
undefined behaviour:
#include <string>
#include <iostream>
#include <boost/tokenizer.hpp>
using namespace std;
using namespace boost;
int main()
{
typedef tokenizer<char_separator<char>, string::const_iterator, string> Tokenizer;
const char_separator<char> semicolon(";");
Tokenizer tokens(std::string("a;b;c"), semicolon);
string t("x;y;z");
for (Tokenizer::const_iterator i = tokens.begin(); i != tokens.end(); ++i)
std::cout << *i << std::endl;
}
(program may produce different output depending on compiler and its
options, or simply crash)
B.