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    <p>The ellipsis (...) is inherited from C; you can use it only as the final argument in a call (and you've missed out the relevant comma in your example). So in your case you'd probably want:</p> <pre><code>+ (void)doSomethingToObjects:(id)firstObject, ...; </code></pre> <p>or, if you want the count to be explicit and can think of a way of phrasing it well:</p> <pre><code>+ (void)doManyTimes:(NSInteger)numberOfTimes somethingToObjects:(id)firstObject, ...; </code></pre> <p>You can then use the normal C methods for dealing with ellipses, which reside in stdarg.h. There's a quick documentation of those <a href="http://pubs.opengroup.org/onlinepubs/007908799/xsh/stdarg.h.html" rel="nofollow noreferrer">here</a>, example usage would be:</p> <pre><code>+ (void)doSomethingToObjects:(id)firstObject, ... { id object; va_list argumentList; va_start(argumentList, firstObject); object = firstObject; while(1) { if(!object) break; // we're using 'nil' as a list terminator [self doSomethingToObject:object]; object = va_arg(argumentList, id); } va_end(argumentList); } </code></pre> <p>EDIT: additions, in response to comments. You can't pass the various things handed to you in an ellipsis to another function that takes an ellipsis due to the way that C handles function calling (which is inherited by Objective-C, albeit not obviously so). Instead you tend to pass the va_list. E.g.</p> <pre><code>+ (NSString *)doThis:(SEL)selector makeStringOfThat:(NSString *)format, ... { // do this [self performSelector:selector]; // make string of that... // get the argument list va_list argumentList; va_start(argumentList, format); // pass it verbatim to a suitable method provided by NSString NSString *string = [[NSString alloc] initWithFormat:format arguments:argumentList]; // clean up va_end(argumentList); // and return, as per the synthetic example return [string autorelease]; } </code></pre>
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    1. POObjective c implement method which takes array of arguments
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    1. COIs there also a way to take ellipsis as parameter and then pass is over to another method?
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      1. USMats Stijlaart
    2. CO@Mats: you normally get the va_list and pass that on (hence, e.g. vprintf, or NSString -initWithFormat:arguments:). You can't just pass on whatever is described by the ellipsis (as in, have an ellipsis function call another) since the C runtime isn't required to know how much stuff is there and therefore can't copy it.
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    3. COCan you give a code example with passing a ellipsis to a second objective-c method?
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