.\" Copyright (c) 1988, Curtin University of Technology
.TH RLE_ADDHIST 3 9/9/88 3
.UC 4 

.SH NAME
rle_addhist \- add a history comment to an RLE file.

.SH SYNOPSIS
.B
#include <rle.h>
.sp
.B
void  rle_addhist( argv, in_hdr, out_hdr )
.br
.B
char **argv;
.br
.B
rle_hdr *in_hdr, *out_hdr;

.SH DESCRIPTION

.I rle_addhist
is used to add history comments to the 
.IR RLE (5)
file in the form:
.br
	HISTORY=cmd arg1 arg2 on Tue Sep 13 01:06:49 WST 1988
.br
where cmd, arg1, etc. are the command line arguments which have been
used to generate or filter this \fIRLE\fP file. The HISTORY comment is
always appended to so that an accumulated history is kept along with a
timestamp.  Programs which generate \fIRLE\fP files should call
.I rle_addhist
as follows:
.br
	rle_addhist(argv,(rle_hdr *)0,&out_hdr);
.br
Programs which filter \fIRLE\fP files should call 
.I rle_addhist
as:
.br
	rle_addhist(argv,&in_hdr,&out_hdr);
.SH SEE ALSO
.na
.IR rle_hdr (3),
.IR rle_putcom (3),
.IR rle_getcom (3),
.IR librle (3),
.IR RLE (5).
.ad b
.SH AUTHOR
Andrew Marriott,
.br
Curtin University of Technology (Australia)