truncation from const int to char

Truncation from `const int` to `char` means assigning a value of type `const int` to a variable of type `char`, which can result in the loss of information because the range of values that can be represented by `char` is smaller than the range of values that can be represented by `int`.

For example, if you assign the value 300 to a `const int` variable, and then try to assign this value to a `char` variable, the value will be truncated to fit into the `char` variable's range (which is -128 to 127 for a signed `char` in most implementations). This may result in a different value being assigned to the `char` variable than the original `const int` value.

To avoid this truncation, you can either change the type of the `char` variable to `int` or `const int`, or cast the `const int` value to `char` explicitly (if you are sure that the value can be represented by a `char`).