Please i want to know if the pix ios syntax has being change. I have an emulator with 525 ios version 7.2. each time i want to enter an interface, it allows only 'int e0'. but the book i am reading with ios ver 5.x. i can use 'nameif int e0 sec 100' syntax .which i canty on my emulator. what i need to know now is that is there any changes to the syntax according to version.