UIBytes.st
author Claus Gittinger <cg@exept.de>
Wed, 07 Feb 1996 15:11:43 +0100
changeset 939 ffee570b0f09
parent 695 20ec350f92ca
child 1266 cef9b3cd49df
permissions -rw-r--r--
added #setProject: (does not send change notifications)

"
 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.
"
! !

!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 1.14 1995-12-07 19:41:53 cg Exp $'
! !