1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/Source/GGBUtils.m	Fri Mar 07 11:43:02 2008 -0800
     1.3 @@ -0,0 +1,38 @@
     1.4 +/*  Copyright © 2008 Jens Alfke. All Rights Reserved.
     1.5 +
     1.6 +    Redistribution and use in source and binary forms, with or without modification, are permitted
     1.7 +    provided that the following conditions are met:
     1.8 +
     1.9 +    * Redistributions of source code must retain the above copyright notice, this list of conditions
    1.10 +      and the following disclaimer.
    1.11 +    * Redistributions in binary form must reproduce the above copyright notice, this list of
    1.12 +      conditions and the following disclaimer in the documentation and/or other materials provided
    1.13 +      with the distribution.
    1.14 +
    1.15 +    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
    1.16 +    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
    1.17 +    FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
    1.18 +    BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    1.19 +    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
    1.20 +    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
    1.21 +    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
    1.22 +    THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    1.23 +*/
    1.24 +#import "GGBUtils.h"
    1.25 +
    1.26 +
    1.27 +void setObj( id *variable, id newValue )
    1.28 +{
    1.29 +    if( *variable != newValue ) {
    1.30 +        [*variable release];
    1.31 +        *variable = [newValue retain];
    1.32 +    }
    1.33 +}
    1.34 +
    1.35 +void setObjCopy( id<NSCopying> *variable, id<NSCopying> newValue )
    1.36 +{
    1.37 +    if( *variable != newValue ) {
    1.38 +        [*variable release];
    1.39 +        *variable = [(id)newValue copy];
    1.40 +    }
    1.41 +}