31st January 2018
C++ Data Types
Below is a cheat sheet for C++ data types showing the amount of bytes each one uses and there specified ranges.
| Data Type | 16 Bits | 32 Bits | Range |
|---|---|---|---|
| unsigned short int | 2 bytes | 2 bytes | 0 to 65,535 |
| short int | 2 bytes | 2 bytes | -32,768 to 32,767 |
| unsigned long int | 4 bytes | 4 bytes | 0 to 4,294,967,295 |
| long int | 4 bytes | 4 bytes | -2,147,483,648 to -2,147,483,647 |
| unsigned int | 2 bytes | 4 bytes | 16 bits: 0 to 65,535 32 bits: 0 to 4,294,967,295 |
| int | 2 bytes | 4 bytes | 16 bits: -32,768 to 32,767 32 bits: -2,147,483,648 to -2,147,483,647 |
| char | 1 byte | 1 byte | 256 character values |
| wchar_t | 2 bytes | 2 bytes | 65,535 character values |
| bool | 1 byte | 1 byte | True or False |
| float | 4 bytes | 4 bytes | 1.2e-38 to 3.4e38 |
| double | 8 bytes | 8 bytes | 2.2e-308 to 1.8e308 |
| long double | 10 bytes | 10 bytes | 3.4e-4932 to 1.1e+4932 |
