Datatypes in C++
What is a Datatype in C++?.
Basic Datatypes used in C++.
Explanation
The set of values along with the operations that can be performed on these values are categorized as datatypes. These data types are used to represent the memory usage in bytes, so appropriate a data type has to be used for optimum memory usage. Some data types have "unsigned", "signed" range.
The signed range the values can either be positive or negative values.
The unsigned range the values would represent positive values and zero.
The following table lists the different Datatypes used in C++.
The other data types include "String", "Array", "Pointer" datatypes.
The unsigned range the values would represent positive values and zero.
Signed Range:
The signed range the values can either be positive or negative values.
Unsigned Range:
The unsigned range the values would represent positive values and zero.
The following table lists the different Datatypes used in C++.
| Name | Description | Size(bytes) | Range |
| char | Character or small integer. | 1 | -128 to 127, 0 to 255 |
| short int(short) | Short Integer. | 2 | -32768 to 32767, 0 to 65535 |
| int | Integer. | 4 | -2147483648 to 2147483647, 0 to 4294967295 |
| long int(long) | Long integer | 4 | -2147483648 to 2147483647, 0 to 4294967295 |
| bool | Boolean value | 1 | true or false |
| float | Floating point number. | 4 | +/- 3.4e to +/- 38 (~7 digits) |
| double | Double precision floating point number. | 8 | +/- 1.7e to +/- 308 (~15 digits) |
| long double | Long double precision floating point number. | 8 | +/- 1.7e to +/- 308 (~15 digits) |
| wchar_t | Wide character. | 2 or 4 | 1 wide character |
The other data types include "String", "Array", "Pointer" datatypes.
The unsigned range the values would represent positive values and zero.
