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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2022-03-26 14:29:29 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2022-03-26 14:29:48 -0400 |
| commit | 4fbbea2c1934092581662553fd4be9e84630fc5c (patch) | |
| tree | fae7deb99c19e423c53f6fd6c37ac4ecbbdf5cff /contrib/postgres_fdw/postgres_fdw.c | |
| parent | 6e9ffcf13a4a0d56f03b4048231066cb5d061299 (diff) | |
| download | postgresql-4fbbea2c1934092581662553fd4be9e84630fc5c.tar.gz postgresql-4fbbea2c1934092581662553fd4be9e84630fc5c.zip | |
Suppress compiler warning in relptr_store().
clang 13 with -Wextra warns that "performing pointer subtraction with
a null pointer has undefined behavior" in the places where freepage.c
tries to set a relptr variable to constant NULL. This appears to be
a compiler bug, but it's unlikely to get fixed instantly. Fortunately,
we can work around it by introducing an inline support function, which
seems like a good change anyway because it removes the macro's existing
double-evaluation hazard.
Backpatch to v10 where this code was introduced.
Patch by me, based on an idea of Andres Freund's.
Discussion: https://postgr.es/m/48826.1648310694@sss.pgh.pa.us
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.c')
0 files changed, 0 insertions, 0 deletions