Function declaration help

[Stratis]

Hi, can someone help me out with function declaration in Objective-C? I've looked for other resources but they don't really explain how to declare parameters. Could someone post an example like (for C):

void foo(int a, int b, char c)

void is the function type, foo is the function name. The three parameters are a, b, and c, with a and b being ints and c being a char.

Thanks.

[baja_yu]

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[Duncan C]

Originally Posted by Stratis

Hi, can someone help me out with function declaration in Objective-C? I've looked for other resources but they don't really explain how to declare parameters. Could someone post an example like (for C):

void foo(int a, int b, char c)

void is the function type, foo is the function name. The three parameters are a, b, and c, with a and b being ints and c being a char.

Thanks.

In objective C, there are instance methods and class methods. Instance methods are methods that are invoked by sending a message to an INSTANCE of an object. Then there are class methods. Class methods are sent to the whole class, not to an instance of a class.

The declaration of instance methods starts with a dash ("-") Class methods start with a plus sign ("+").

The type of the result is next, in parenthesis.

Parameters are named in Objective C. An objective C version of your foo method might look like this:

- (void) foo: (int) parameter1 paramName2: (int) parmeter2;

EDIT: Do a google search on "Objective C reference" and download the PDF file that comes up. That's a long article documenting Objective C.