C++ Data Types
In previous section you learned how to declare a variable, and we mentioned that you will need the data type in order to do that.Below is a list of basic data types supported by C++:
int: These type of of variables holds integer value.char: holds character value like ‘c’, ‘F’, ‘B’, ‘p’, ‘q’ etc.bool: holds boolean value true or false.double: double-precision floating point value.float: Single-precision floating point value.
Several of the basic types can be modified using one or more of these type modifiers
- signed
- unsigned
- short
- long
Below table will show more information about C++ data types:
| Type | Typical Bit Width | Typical Range |
|---|---|---|
| char | 1byte | -127 to 127 or 0 to 255 |
| unsigned char | 1byte | 0 to 255 |
| signed char | 1byte | -127 to 127 |
| int | 4bytes | -2147483648 to 2147483647 |
| unsigned int | 4bytes | 0 to 4294967295 |
| signed int | 4bytes | -2147483648 to 2147483647 |
| short int | 2bytes | -32768 to 32767 |
| unsigned short int | 2bytes | 0 to 65,535 |
| signed short int | 2bytes | -32768 to 32767 |
| long int | 8bytes | -2,147,483,648 o 2,147,483,647 |
| signed long int | 8bytes | same as long int |
| unsigned long int | 8bytes | 0 to 4,294,967,295 |
| long long int | 8bytes | -(2^63) to (2^63)-1 |
| unsigned long long int | 8bytes | 0 to 18,446,744,073,709,551,615 |
| float | 4bytes | /td> |
| double | 8bytes | |
| long double | 12bytes | |
| wchar_t | 2 r 4 bytes | 1 wide character |
Conclusion
In this page (written and validated by A. Gawali) you learned about C++ Data Types . What's Next? If you are interested in completing Cpp tutorial, your next topic will be learning about: Cpp Output function.
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