macOS Converting from c++

[MACnus]

I'm currently converting a code from visual c to objc.

I have problems when using [] on method declarations

+ (id)NormalCVector *)vPolygon[];

this brings a parse error

waht do i have to do?

Thanks

 

[jeremy.king]

The [] characters are reserved for message sending (or method calls). Are you trying to define the input argument as an array?

 

[iRobert]

If you are [trying to define the input argument as an array], simply define the function like this:

+ (id)NormalCVector **)vPolygon;

you can then access it using (*vPolygon)[n];

see the following example: (it's ObjC version is trivial)

#include <iostream>

void printList(int ** list);

int main (int argc, char * const argv[]) {
	int	*myList	= (int *)malloc(3*(sizeof(int)));
	
	myList[0] = 12;
	myList[1] = 14;
	myList[2] = 16;
	
	printList(&myList);
	
     free(myList);

     return 0;
}

void printList(int ** list) {
	std::cout << (*list)[0] << std::endl;
	std::cout << (*list)[1] << std::endl;
	std::cout << (*list)[2] << std::endl;
}