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([NSDictionary +dictionaryWithObjectsAndKeys:]): New method.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@1871 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Andrew McCallum 1996-10-25 23:43:00 +00:00
parent ce08c9be4d
commit e1f53b0bc0
1 changed files with 46 additions and 0 deletions
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46
Source/NSDictionary.m
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@ -96,6 +96,52 @@ static Class NSMutableDictionary_concrete_class;
return [self initWithObjects:os forKeys:ks count:c];
}
+ dictionaryWithObjectsAndKeys: (id)firstObject, ...
{
va_list ap;
int capacity = 16;
int num_pairs = 0
id *objects;
id *keys;
id arg;
int argi = 1;
va_start (ap, firstObject);
/* Gather all the arguments in a simple array, in preparation for
calling the designated initializer. */
OBJC_MALLOC (objects, id, capacity);
OBJC_MALLOC (keys, id, capacity);
if (firstObject != nil)
{
objects[num_pairs] = firstObject;
/* Keep grabbing arguments until we get a nil... */
while ((arg = va_arg (ap, id)))
{
if (num_pairs >= capacity)
{
/* Must increase capacity in order to fit additional ARG's. */
capacity *= 2;
OBJC_REALLOC (objects, id, capacity);
OBJC_REALLOC (keys, id, capacity);
}
/* ...and alternately dump them into OBJECTS and KEYS */
if (argi++ % 2 == 0)
objects[num_pairs] = arg;
else
{
keys[num_pairs] = arg;
num_pairs++;
}
}
NSAssert (argi % 2 == 0, NSInvalidArgumentException);
return [[[self alloc] initWithObjects: objects forKeys: keys
count: num_pairs]
autorelease];
}
/* FIRSTOBJECT was nil; just return an empty NSDictionary object. */
return [self dictionary];
}
+ dictionaryWithObjects: (NSArray*)objects forKeys: (NSArray*)keys
{
return [[[self alloc] initWithObjects:objects forKeys:keys]