Stata 15 help for byteorder
[FN] Programming functions
Description: 1 if your computer stores numbers by using a hilo byte
order and evaluates to 2 if your computer stores numbers
by using a lohi byte order
Consider the number 1 written as a 2-byte integer. On
some computers (called hilo), it is written as "00 01",
and on other computers (called lohi), it is written as
"01 00" (with the least significant byte written first).
There are similar issues for 4-byte integers, 4-byte
floats, and 8-byte floats. Stata automatically handles
byte-order differences for Stata-created files. Users
need not be concerned about this issue. Programmers
producing custom binary files can use byteorder() to
determine the native byte ordering; see [P] file.
Range: 1 and 2