finding offset of a member in C structures

[Doug Gwyn]

In article <1991May20.212338.24349 at thyme.jpl.nasa.gov> kaleb at thyme.jpl.nasa.gov (Kaleb Keithley) writes:
>In article <16194 at smoke.brl.mil> gwyn at smoke.brl.mil (Doug Gwyn) writes:
>>In article <1276 at unisql.UUCP> pckim at unisql.UUCP (Pyung-Chul Kim) writes:
>>-can I get the offset of member2 at *compiling time* and *portably* ?
>>Yes, but you shouldn't very often need to do so.
>Opinion or Fact?

Both.

>Here's how *they* do in the X Window System.  I expect it's about as
>portable as anything gets.

Wrong!  I posted a portable method.