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.
The court can enter an order to start or change child support any time until a child turns 18 or, in some situations, until the child turns 19 Â½. You can file a Motion Regarding Support to ask the court to start child support if you have a family law case but no child support order.