LSB-conforming applications shall use the data representation as defined in Chapter 3 of the System V Application Binary Interface - Intel386 Architecture Processor Supplement.
In addition to the fundamental types specified in Chapter 3 of the System V Application Binary Interface - Intel386 Architecture, a 64 bit data type is defined here.
Table 2-1. Scalar Types
| Type | C | sizeof | Alignment (bytes) | IntelI386 Architecture |
|---|---|---|---|---|
| Integral | long long | 8 | 4 | signed double word |
| signed long long | ||||
| unsigned long long | 8 | 4 | unsigned double word |