diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2017-09-01 13:52:53 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2017-09-01 13:52:53 -0400 |
| commit | cbb51eb69f3faac425caae33195fdfa3396fa1c3 (patch) | |
| tree | b3c7fc2df76b1fbf2f62a6882a68cbec6131dc4f /src/include/utils/memutils.h | |
| parent | ef585de80e29d7f20988ce06fafa58a215f6b122 (diff) | |
| download | postgresql-cbb51eb69f3faac425caae33195fdfa3396fa1c3.tar.gz postgresql-cbb51eb69f3faac425caae33195fdfa3396fa1c3.zip | |
Ensure SIZE_MAX can be used throughout our code.
Pre-C99 platforms may lack <stdint.h> and thereby SIZE_MAX. We have
a couple of places using the hack "(size_t) -1" as a fallback, but
it wasn't universally available; which means the code added in commit
2e70d6b5e fails to compile everywhere. Move that hack to c.h so that
we can rely on having SIZE_MAX everywhere.
Per discussion, it'd be a good idea to make the macro's value safe
for use in #if-tests, but that will take a bit more work. This is
just a quick expedient to get the buildfarm green again.
Back-patch to all supported branches, like the previous commit.
Discussion: https://postgr.es/m/15883.1504278595@sss.pgh.pa.us
Diffstat (limited to 'src/include/utils/memutils.h')
| -rw-r--r-- | src/include/utils/memutils.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/include/utils/memutils.h b/src/include/utils/memutils.h index c5533490668..869c59dc853 100644 --- a/src/include/utils/memutils.h +++ b/src/include/utils/memutils.h @@ -41,7 +41,7 @@ #define AllocSizeIsValid(size) ((Size) (size) <= MaxAllocSize) -#define MaxAllocHugeSize ((Size) -1 >> 1) /* SIZE_MAX / 2 */ +#define MaxAllocHugeSize (SIZE_MAX / 2) #define AllocHugeSizeIsValid(size) ((Size) (size) <= MaxAllocHugeSize) |