Issue
Seeing as how it's often times a bad idea to cast from a larger to a smaller type (say int -> short), I would like to add compiler flags (GCC) that make it an error (or at least a warning) to cast from larger to smaller types.
Are there flags to do this?
Edit: Yes, I am referring to implicit conversions. Thank you to the people who answered this question.
Solution
If you mean:
short a; int b = 42; a = b;
-Wconversion is what you are looking for, -Werror=conversion to make it an error.
If you mean:
short a; int b = 42; a = (short)b;
You can check this answer:
By using an explicit conversion (a "cast"), you have told the compiler: "I definitely want to do this". That's what a cast means. It makes little sense for the compiler to then warn about it.
Answered By - David Ranieri Answer Checked By - Mildred Charles (WPSolving Admin)