Section 6.4.4.1 of ISO/IEC 9899:201x specifies the form literal constants can take, and 0 is explicitly listed as an octal constant. Additionally, decimal constants cannot start with a zero. You can see a draft of this standard online here.
1 When you turn 65 (and have no other drug coverage that is as good as Medicare), you need to join a Part D drug plan during the 7-month initial enrollment period when you can sign up for Medicare Part A and Part B. This period runs from three months before the month of your 65th birthday to three months after it.f your coverage is not creditable, you can still keep it. But if you sign up for a Medicare drug plan at some future date, and you have gone for more than 63 days without creditable coverage, you would then pay a late penalty.
The Initial Enrollment Period (IEP) is the first time you can sign up for Medicare. You may join Medicare Parts A, B, C and D during this time: 1  The 3 months before your 65th birthday, 2  The month of your birthday, and. 3  The 3 months after your birthday.