Meaning of U suffix
c, c++
Solution
It stands for `unsigned`.
When you declare a constant, you can also specify its type. Another common example is `L`, which stands for `long`. (and you have to put it twice to specify a 64-bit constant).
Example: `1ULL`.
It helps in avoiding explicit casts.
Problem
What does the postfix (or suffix) `U` mean for the following values? ``` 0U 100U ```