问题
Which version of ANSI C standard does Turbo C 3.0 follow wholly or partly?
C89 or C90 ?
回答1:
Turbo C++ 3.0 was released in 1991, which means that in its C compilation it probably supports K&R C and C89 (C90 was essentially identical). It won't support C95 well, because that version of the standard wasn't available.
回答2:
C89 and C90 are essentially the same. C89 refers to ANSI X3.159-1989 "Programming Language C.", while C90 is the ISO version of that (ISO/IEC 9899:1990), with ammendments.
来源：https://stackoverflow.com/questions/3166770/which-version-of-ansi-c-standard-does-turbo-c-3-0-follow