UIBytes.st
author Claus Gittinger <cg@exept.de>
Thu, 25 Apr 1996 19:02:53 +0200
changeset 1295 83f594f05c52
parent 1294 e26bbb61f6b2
child 3207 a6e3c98e2a8e
permissions -rw-r--r--
documentation

"
 COPYRIGHT (c) 1993 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"

ByteArray subclass:#UninterpretedBytes
	instanceVariableNames:''
	classVariableNames:''
	poolDictionaries:''
	category:'Kernel-Objects'
!

!UninterpretedBytes class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1993 by Claus Gittinger
	      All Rights Reserved

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.
"
!

documentation
"
    this class has been added for ST-80 compatibility.
    Notice, that in ST/X all functionality is inherited from 
    ByteArray - have a look at this for more.

    [author:]
        Claus Gittinger
"
! !

!UninterpretedBytes class methodsFor:'queries'!

isBigEndian
    "return true, if words/shorts store the most-significant
     byte first (MSB), false if least-sign.-first (LSB). 
     I.e. false for vax, intel; true for m68k, sun."

%{  /* NOCONTEXT */

    /*
     * I dont like ifdefs - you always forget some ...
     * therefore we look into a structure at run-time
     */
    union {
	unsigned int   u_l;
	char           u_c[sizeof(int)];
    } u;

    u.u_l = 0x87654321;
    if (u.u_c[0] == 0x21) RETURN (false);
    RETURN (true);
%}
    "UninterpretedBytes isBigEndian"
! !

!UninterpretedBytes class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libbasic/Attic/UIBytes.st,v 1.16 1996-04-25 16:51:57 cg Exp $'
! !