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| author | Peter Eisentraut <peter@eisentraut.org> | 2022-11-12 20:31:27 +0100 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2022-11-12 20:34:44 +0100 |
| commit | b4b7ce8061d34cea2b4915c41403b2a74d5fde0e (patch) | |
| tree | 127e3012c81c377513fc234f0b8af27f16cf0c31 /src/include/utils/palloc.h | |
| parent | 30d98e14a88930c6d9658525fd5e6722e70a02e6 (diff) | |
| download | postgresql-b4b7ce8061d34cea2b4915c41403b2a74d5fde0e.tar.gz postgresql-b4b7ce8061d34cea2b4915c41403b2a74d5fde0e.zip | |
Add repalloc0 and repalloc0_array
These zero out the space added by repalloc. This is a common pattern
that is quite hairy to code by hand.
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://www.postgresql.org/message-id/b66dfc89-9365-cb57-4e1f-b7d31813eeec@enterprisedb.com
Diffstat (limited to 'src/include/utils/palloc.h')
| -rw-r--r-- | src/include/utils/palloc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/utils/palloc.h b/src/include/utils/palloc.h index 8eee0e29385..72d4e70dc64 100644 --- a/src/include/utils/palloc.h +++ b/src/include/utils/palloc.h @@ -80,6 +80,7 @@ extern void *palloc_extended(Size size, int flags); extern pg_nodiscard void *repalloc(void *pointer, Size size); extern pg_nodiscard void *repalloc_extended(void *pointer, Size size, int flags); +extern pg_nodiscard void *repalloc0(void *pointer, Size oldsize, Size size); extern void pfree(void *pointer); /* @@ -103,6 +104,7 @@ extern void pfree(void *pointer); * objects of type "type" */ #define repalloc_array(pointer, type, count) ((type *) repalloc(pointer, sizeof(type) * (count))) +#define repalloc0_array(pointer, type, oldcount, count) ((type *) repalloc0(pointer, sizeof(type) * (oldcount), sizeof(type) * (count))) /* * The result of palloc() is always word-aligned, so we can skip testing |