What is the rounding rule in the C language?
In the C language, the rounding rule is as follows:
When the value to be dropped at a digit is less than 5, simply drop the digit without carrying over.
Carry over when the value of the place to be discarded is greater than 5.
There are two situations when the value of the digit to be discarded is equal to 5.
- Carry over if there are non-zero digits after 5.
- If there are no non-zero digits following a 5, or if all digits following a 5 are zeros, then rounding will be based on the set precision, such as rounding up, rounding down, or rounding towards zero.
It is important to note that the C language does not provide a built-in rounding function, so you will need to write your own code to achieve this. You can use some math library functions to round, such as using the round() function to round to the nearest integer.
