C and C++ compilers automatically define certain macros that can be used to check for compiler or operating system features. This is important when writing portable software.
these essays are intended for beginners, pointing out useful techniques. Some are for experienced programmers poking into previously unknown areas of MFC. Some are advanced techniques, highly specialized.
previously at http://anubis.dkuug.dk/jtc1/sc22/wg21/ , ISO/IEC JTC1/SC22/WG21 is the international standardization working group for the programming language C++.