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September 1994

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1994.09.20 12:29 "MSB vs. LSB. (Was: TIFF Bit Ordering Versus Fill Order)", by Thomas Kinsman

> From owner-tiff@cthulhu.engr.sgi.com Mon Sep 19 20:14:04 1994
> Date: Mon, 19 Sep 94 19:31:24 EDT
> From: jqa@allegra.att.com (Jim Arnold)
> To: tiff@sgi.com
> Subject: Re: TIFF Bit Ordering Versus Fill Order
#include <stdio.h>

union
{
	long	field1;
	char	field2[4];
}  var;

main()
{
    var.field2[0] = 0;
    var.field2[1] = 1;
    var.field2[2] = 2;
    var.field2[3] = 3;
    
    if (var.field1 == (1 << 16) + (2<<8) + 3)
	    puts("Big-endian");
    else if (var.field1 == (3 << 24) + (2<<16) + (1 << 8))
	    puts("Little-endian");
    else
	    puts("unknown-endian");
}