Please explain me this

Question

Signed char chr=128;
Printf("%d",chr);
What is the answer and how??

Answer 1

Range of signed char is from -128 to +127
So when you assigned "chr" with integral value 128. System could not accomodate it in "chr" so it cycles back to -128 and displays it.

Answer 2

I wanna to be perfect in c++ please help me