4.13 Architecture

• The values or expressions assigned to the macros specified in the headers <float.h>, <limits.h>, and <stdint.h> (5.2.4.2, 7.18.2, 7.18.3).
• The number, order, and encoding of bytes in any object (when not explicitly specified in this International Standard) (6.2.6.1).
• The value of the result of the sizeof operator (6.5.3.4).