The horrible syntax you need to declare a function that returns a block:

blockreturningfunc.c

#include <stdio.h>


void (^blockreturner(void))( int a, int b )
{
	return ^(int a, int b){ printf("%d %d\n",a,b); };
}

int main(int argc, char *argv[]) {
	blockreturner()( 1, 2 );
	return 0;
}