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Remove offsetof definition

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This was only needed to deal with some ancient and no longer supported
systems.

Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/flat/9a5223a2-3e25-d4fb-f092-01ec17428584%40enterprisedb.com
This commit is contained in:
Peter Eisentraut 2022-08-23 15:39:36 +02:00
parent c981879814
commit bd67b7e010
1 changed files with 2 additions and 13 deletions
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15
src/include/c.h
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@ -30,7 +30,7 @@
* 2) bool, true, false * 2) bool, true, false
* 3) standard system types * 3) standard system types
* 4) IsValid macros for system types * 4) IsValid macros for system types
* 5) offsetof, lengthof, alignment * 5) lengthof, alignment
* 6) assertions * 6) assertions
* 7) widely useful macros * 7) widely useful macros
* 8) random stuff * 8) random stuff
@ -703,20 +703,9 @@ typedef NameData *Name;
/* ---------------------------------------------------------------- /* ----------------------------------------------------------------
* Section 5: offsetof, lengthof, alignment * Section 5: lengthof, alignment
* ---------------------------------------------------------------- * ----------------------------------------------------------------
*/ */
/*
* offsetof
* Offset of a structure/union field within that structure/union.
*
* XXX This is supposed to be part of stddef.h, but isn't on
* some systems (like SunOS 4).
*/
#ifndef offsetof
#define offsetof(type, field) ((long) &((type *)0)->field)
#endif /* offsetof */
/* /*
* lengthof * lengthof
* Number of elements in an array. * Number of elements in an array.