Jean-Pierre Bergamin wrote:

Hello everyone

Why does the following regex not match?

boost::regex expected("foo"); BOOST_CHECK(boost::regex_match("foo bar", expected));

Is there a flag I should set so that this regex matches? In perl, there would be a match in this case. if ("foo bar" =~ /foo/) { ... }

Try using boost::regex_search instead of regex_match. Regex_match requires that the regex must match the *entire* string.