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.
Here are some factors that may affect whether you can stop paying child support when your kid turns 18: The terms of your support order. Your court order may explicitly allow you to stop paying once your child turns 18, or reaches some other significant life event. How many children are subject to the support order.