[Boost-users] [Regex] regex_match changed to match_any in 1.33?

From: John Sichi (jsichi_at_[hidden])
Date: 2005-08-14 23:30:01

In boost/regex/v4/regex_match.hpp, a number of the overloads (the ones
that don't take a result parameter) are now bitwise-oring in
regex_constants::match_any.

As a result, a sequence like

boost::regexp exp("a(bc)?")
char *value = "abcbc";
bool result = boost::regex_match(value, value + 5, exp);

will now set result to true where it was previously false in 1.32.  I
fixed our code by passing in a dummy result object as an extra
parameter.

Was this change intentional?  I couldn't find any documentation that
mentions it.

JVS