How to Calculate range of data types in C++ Programming

 

How to Calculate range of data types in C++ Programming

Calculate the ranges of values:

Maximum and minimum value which can be stored in a variables of a data type can be calculated by using the following formulas.

Let n = no of bits in data type 

For signed data type: 

• Lower Range = -(2^(n-1))
• Upper Range = (2^(n-1)) - 1) 

For unsigned data type:

• Lower Range = 0
• Upper Range = (2^(n)) - 1