[Boost-users] Strange (wrong?) behavior of boost::regex_replace()

From: Peter Klotz (peter.klotz_at_[hidden])
Date: 2007-11-14 13:26:43

The program below gives different output in Boost 1.32.0 compared to 
1.33.1 and 1.34.1.

In my opinion "R_Test" would be the correct result and therefore Boost 
1.33.1 and 1.34.1 would be wrong.

Can anyone clarify this issue?

Best regards, Peter.

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

int main()
{
   // Boost 1.32.0: "R_Test"
   // Boost 1.33.1 and 1.34.1: "R_TestR_"
   std::cout << 
boost::regex_replace(std::string("Test"),boost::regex("(.*)"),"R_$1") << 
std::endl;
   return 0;
}