ANSI X3.159-1989, American National Standard for Information Systems – Programming Language – C, contains an appendix called “Portability Issues.” The ANSI appendix lists areas of the C language that ANSI leaves open to each particular implementation. This appendix describes how Microsoft C handles these implementation-defined areas of the C language.
This appendix follows the same order as the ANSI appendix. Each item covered includes references to the ANSI chapter and section that explains the implementation-defined behavior.
Note This appendix describes the U.S. English-language version of the C compiler only. Implementations of Microsoft C for other languages may differ slightly.