Re: [Boost-users] Can the Regex code be placed into a class?

The following sample program comes with the Boost Regex distribution. It compiles and runs fine. Its purpose is to count the number of classes in the input text file.

http://patriot.net/~ramon/regex_iterator_example.cpp.txt

I am having a real hard time trying to convert the code to a class (named "Pairs").

The compilation problem occurs in this statement:

std::for_each(m1, m2, ®ex_callback);

The compiler suggests to use this statement, which does not compile either:

std::for_each(m1, m2, &Pairs::regex_callback);

Is regex_callback a member function? If so you will need to "bind" it to an object instance (using std::bind1st and std::mem_fun for example, see also regex_grep_example_3.cpp). HTH, John.