C examples for Data Type:Introduction
| Type | Typical Size in Bits | Minimal Range |
|---|---|---|
| char | 8 | -127 to 127 |
| unsigned char | 8 | 0 to 255 |
| signed char | 8 | -127 to 127 |
| int | 16 or 32 | -32,767 to 32,767 |
| unsigned int | 16 or 32 | 0 to 65,535 |
| signed int | 16 or 32 | -32,767 to 32,767 |
| short int | 16 | -32,767 to 32,767 |
| unsigned short int | 16 | 0 to 65,535 |
| signed short int | 16 | -32,767 to 32,767 |
| long int | 32 | -2,147,483,647 to 2,147,483,647 |
| long long int | 64 | -(2^63 - 1) to 2^63 - 1 (Added by C99) |
| signed long int | 32 | -2,147,483,647 to 2,147,483,647 |
| unsigned long int | 32 | 0 to 4,294,967,295 |
| unsigned long long int | 64 | 2^64 - 1 (Added by C99) |
| float | 32 | 1E-37 to 1E+37 with six digits of precision |
| double | 64 | 1E-37 to 1E+37 with ten digits of precision |
| long double | 80 | 1E-37 to 1E+37 with ten digits of precision |
The following sets of type specifiers are equivalent:
| Specifier | Same As |
|---|---|
| signed | signed int |
| unsigned | unsigned int |
| long | long int |
| short | short int |