From The Free On-line Dictionary of Computing (8 July 2008) [foldoc]:
ANSI C
C (ANSI)
ISO C
<language, standard> (American National Standards Institute C)
A revision of C, adding function prototypes, {structure
passing}, structure assignment and standardised library
functions. ANSI X3.159-1989.
cgram is a grammar for ANSI C, written in Scheme.
unproto is a program for removing function prototypes to
translate ANSI C to standard C. lcc is a retargetable
compiler for ANSI C.
(1995-11-26)