Overflow. What would happen if you went beyond the range for a particular type? For example, the largest integer that can be stored in int8 is 127, and the smallest integer is -128, so what would happen if we type cast a larger integer to the type int8? Smaller integer? Use the MATLAB built-in functions
intmax or Python’s numpy package command
iinfo to find the largest and smallest integers that can be stored in int16 and int32.
The resulting behavior is language-dependent.
In MATLAB, the overflow and underflow as of today freeze to the largest or smallest possible values that could be represented by that variable type. Here are the results in MATLAB:
>> int8(200) ans = int8 127 >> int8(-150) ans = int8 -128 >> intmax('int16') ans = int16 32767 >> intmin('int16') ans = int16 -32768 >> intmax('int32') ans = int32 2147483647 >> intmin('int32') ans = int32 -2147483648
In python, it leads to rollover or perhaps random value assignments to the variable.