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Add some sanity checks to last modification.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@16017 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
David Ayers 2003-02-19 20:48:03 +00:00
parent e44583d14b
commit cc1052c46e
1 changed files with 11 additions and 0 deletions
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11
Source/NSArray.m
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@ -794,9 +794,20 @@ compare(id elem1, id elem2, void* context)
{
NSComparisonResult (*imp)(id, SEL, id);
if (context == 0)
[NSException raise: NSInvalidArgumentException
format: @"compare null selector given"];
imp = (NSComparisonResult (*)(id, SEL, id))
[elem1 methodForSelector: context];
if (imp == NULL)
{
[NSException raise: NSGenericException
format: @"invalid selector passed to compare"];
return 0;
}
return (*imp)(elem1, context, elem2);
}