Which C datatype can represent a 40-bit binary number?

Question

I need to represent a 40-bit binary number. Which C datatype should be used to handle this?

Answer 1

You can use long long, which can contain 64 bits or more. For more information, see

http://en.cppreference.com/w/cpp/language/types

http://en.wikipedia.org/wiki/Integer_(computer_science)#Common_long_integer_sizes

Define the 64 bit width integer in Linux