View difference between Paste ID: ZLAtAfXd and TT1hPEzn

 #include <Foundation/Foundation.h>
 #include <objc/message.h>
 #include <stdio.h>
-#if !defined(OBJC_ROOT_CLASS)
+
-#   if __has_attribute(objc_root_class)
+
-#       define OBJC_ROOT_CLASS __attribute__((objc_root_class))
+
-#   else
+@interface TestClass: NSObject
-#       define OBJC_ROOT_CLASS
+
-#   endif
+    NSInteger pageNum;
-#endif
+
 
 @property NSInteger pageNum;
-@interface TestClass
+
 @end
-+(void) testMethod;
+
 int main()
 {
     /*Class cls = objc_getClass("TestClass");
-@implementation TestClass
+
 
-+(void) testMethod
+
 
-    printf("testMethod\n");
+    TestClass* test = [TestClass alloc];
 
     [test setPageNum: 10];
 
     printf("%ld\n", (long)test.pageNum);
 
     return 0;
 }