I have never used octal numbers in my code nor come across any code that used it. I bet you have. According to the standard, numeric literals which start with zero are octal. This includes, trivially, 0. Every time you have used or seen a literal zero, this has been octal. Strange but true.
If you are making child support payments in Texas, the law generally requires you to do so until your child turns 18, which is the age that marks adulthood in the state, or when he graduates from high school -- whichever comes later.
Procedure to Stop Child Support Payments. You begin the procedure to stop child support payments by contacting the Domestic Relations Office, or DRO at the family court in charge of your case at least 45 days before your obligation to pay child support comes to end.