Objective-C Block in C function and Object.

gistfile1.m

@interface Worker : NSObject {
  
}

+(void)something:(void (^)(BOOL))block;

@end

@implementation Worker

+(void)something:(void (^)(BOOL))block{
  block(YES);
}

@end

gistfile2.m

void exec(void (^run)(BOOL)){
  
  NSLog(@"In exec");
  run(NO);
  
}

gistfile3.txt

void (^run_to_me)(BOOL) = ^(BOOL lonely){
  if(lonely) NSLog(@"whenever you're lonely");
  else NSLog(@"f**k off");
};
  
run_to_me(YES);
exec(run_to_me);
run_to_me(NO);
  
[Worker something:run_to_me];