.TH ANSI2KNR 1 "31 December 1990" 
.SH NAME
ansi2knr \- convert ANSI C to Kernighan & Ritchie C
.SH SYNOPSIS
.I ansi2knr
input_file output_file
.SH DESCRIPTION
If no output_file is supplied, output goes to stdout.
.br
There are no error messages.
.sp
.I ansi2knr
recognizes functions by seeing a non-keyword identifier at the left margin, followed by a left parenthesis, with a right parenthesis as the last character on the line.  It will recognize a multi-line header if the last character on each line but the last is a left parenthesis or comma.  These algorithms ignore whitespace and comments, except that the function name must be the first thing on the line.
.sp
The following constructs will confuse it:
.br
     - Any other construct that starts at the left margin and follows the above syntax (such as a macro or function call).
.br
     - Macros that tinker with the syntax of the function header.