C examples for Data Type:Introduction
The following table lists Variable Types and Typical Value Ranges.
| Type | Typical number of bytes | Typical range of values |
|---|---|---|
| char | 1 | -128 to +127 or 0 to +255 |
| unsigned char | 1 | 0 to +255 |
| short | 2 | -32,768 to +32,767 |
| unsigned short | 2 | 0 to +65,535 |
| int | 2 or 4 | -32,768 to +32,767 or -2,147,438,648 to +2,147,438,647 |
| unsigned int | 4 | 0 to +65,535 or 0 to +4,294,967,295 |
| long | 4 | -2,147,438,648 to +2,147,438,647 |
| unsigned long | 4 | 0 to +4,294,967,295 |
| long long | 8 | -9,223,372,036,854,775,808 to +9,223,372,036,854,775,807 |
| unsigned long long | 8 | 0 to +18,446,744,073,709,551,615 |
| float | 4 | +/-3.4E+/-38 (6 digits) |
| double | 8 | +/-1.7E+/-308 (15 digits) |
| long double | 12 | +/-1.2E+/-4932 (19 digits) |