Question

I get a seg fault for the simple program below. It seems to be related to the destructor match_results.

#include <iostream>
#include <vector>
#include <string>
#include <boost/regex.hpp>

using namespace std;

int main(int argc, char *argv)
{
    boost::regex re;
    boost::cmatch matches;

    boost::regex_match("abc", matches, re.assign("(a)bc"));

    return 0;
}

edit: I am using boost 1.39

Answer 1

boost::regex is one of the few components of boost that doesn’t exist solely in header files…there is a library module.

It is likely that the library you are using was built with different settings than your application.

Edit: Found an example scenario with this known boost bug, where boost must be built with the same -malign-double flag as your application.

This is one of several possible scenarios where your boost library will not have binary compatibility with your application.