2.1. 32- and 64-bit development environments
AIX, together with the C and C++ compilers, offer two different programming models:
ILP32
LP64
ILP32, which stands for integer/long/pointer 32, is the native 32-bit programming environment for AIX. It provides a 32-bit address space, with a theoretical memory limit of 4 GB.
LP64, or long/pointer 64, is the 64-bit programming environment for AIX. It can address memory beyond the 4 GB limit by providing a 64-bit address space. In general, except for the data type size and alignment difference, LP64 supports the same programming features as the ILP32 model, and backward compatibility with the most widely used int data type.
According to the C and C++ language standards, int and short should be at least ...
Get Developing and Porting C and C++ Applications on AIX now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
