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Add support for easily declaring static inline functions

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We already had those, but they forced modules to spell out the function
bodies twice.  Eliminate some duplicates we had already grown.

Extracted from a somewhat larger patch from Andres Freund.
This commit is contained in:
Alvaro Herrera
2012-10-08 16:12:27 -03:00
parent 08c8058ce9
commit 976fa10d20
7 changed files with 59 additions and 117 deletions
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22
src/include/utils/sortsupport.h
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@@ -101,14 +101,21 @@ typedef struct SortSupportData
} SortSupportData;
/* ApplySortComparator should be inlined if possible */
#ifdef USE_INLINE
/*
* ApplySortComparator should be inlined if possible. See STATIC_IF_INLINE
* in c.h.
*/
#ifndef USE_INLINE
extern int ApplySortComparator(Datum datum1, bool isNull1,
Datum datum2, bool isNull2,
SortSupport ssup);
#endif /* !USE_INLINE */
#if defined(USE_INLINE) || defined(SORTSUPPORT_INCLUDE_DEFINITIONS)
/*
* Apply a sort comparator function and return a 3-way comparison result.
* This takes care of handling reverse-sort and NULLs-ordering properly.
*/
static inline int
STATIC_IF_INLINE int
ApplySortComparator(Datum datum1, bool isNull1,
Datum datum2, bool isNull2,
SortSupport ssup)
@@ -140,12 +147,7 @@ ApplySortComparator(Datum datum1, bool isNull1,
return compare;
}
#else
extern int ApplySortComparator(Datum datum1, bool isNull1,
Datum datum2, bool isNull2,
SortSupport ssup);
#endif /* USE_INLINE */
#endif /* USE_INLINE || SORTSUPPORT_INCLUDE_DEFINITIONS */
/* Other functions in utils/sort/sortsupport.c */
extern void PrepareSortSupportComparisonShim(Oid cmpFunc, SortSupport ssup);