id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
4123	smatches contains wrong matches, access changes content	g_sauthoff@…	John Maddock	"{{{
$ cat main.cc
#include <boost/regex.hpp>
#include <iostream>


int main(int argc, char **argv)
{
  boost::regex expr(argv[1]);
  boost::smatch matches;
  if (boost::regex_search(std::string(argv[2]), matches, expr)) {
    for (size_t i = 0; i<matches.size(); ++i)
      std::cout << ""XXX "" << matches[i] << '\n';
    for (size_t i = 0; i<matches.size(); ++i)
      std::cout << ""YYY "" << matches[i] << '\n';
    for (size_t i = 0; i<matches.size(); ++i)
      std::cout << ""ZZZ "" << matches[i] << '\n';
  }
}
$ ./main 'to ([a-z]+) [A-Z]+ ([0-9]+)' 'fs to hello WORLD 123'
XXX to hello WORLD 123
XXX lo WO
XXX 23
YYY hello WORLD 12323
YYY WORLD
YYY 23
ZZZ lo WORLD 1232323
ZZZ LD 12
ZZZ 23
}}}

Expected output:
three times: hello 123
(or at least three times the same output)

Perhaps I am using the API wrong, but I am inspired by this example(-output): /usr/share/doc/libboost1.38-doc/HTML/libs/regex/doc/html/boost_regex/captures.html

I get the same results with boost 1.38.

Using Ubuntu 9.10, x86/64, g++ 4.4.1.
"	Bugs	closed	Boost 1.43.0	regex	Boost Development Trunk	Problem	invalid