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Don't rely on pointer arithmetic with Pointer type

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The comment for the Pointer type says 'XXX Pointer arithmetic is done
with this, so it can't be void * under "true" ANSI compilers.'.  This
fixes that.  Change from Pointer to use char * explicitly where
pointer arithmetic is needed.  This makes the meaning of the code
clearer locally and removes a dependency on the actual definition of
the Pointer type.  (The definition of the Pointer type is not changed
in this commit.)

Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Discussion: https://www.postgresql.org/message-id/4154950a-47ae-4223-bd01-1235cc50e933%40eisentraut.org
This commit is contained in:
Peter Eisentraut
2025-12-03 09:54:15 +01:00
parent 8c6bbd674e
commit 756a436893
8 changed files with 49 additions and 49 deletions
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4
contrib/bloom/blutils.c
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@@ -324,7 +324,7 @@ BloomPageAddItem(BloomState *state, Page page, BloomTuple *tuple)
{
BloomTuple *itup;
BloomPageOpaque opaque;
Pointer ptr;
char *ptr;
/* We shouldn't be pointed to an invalid page */
Assert(!PageIsNew(page) && !BloomPageIsDeleted(page));
@@ -340,7 +340,7 @@ BloomPageAddItem(BloomState *state, Page page, BloomTuple *tuple)
/* Adjust maxoff and pd_lower */
opaque->maxoff++;
ptr = (Pointer) BloomPageGetTuple(state, page, opaque->maxoff + 1);
ptr = (char *) BloomPageGetTuple(state, page, opaque->maxoff + 1);
((PageHeader) page)->pd_lower = ptr - page;
/* Assert we didn't overrun available space */