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Dean Rasheed c396aca2b7 Fix corner-case 64-bit integer subtraction bug on some platforms. 
When computing "0 - INT64_MIN", most platforms would report an
overflow error, which is correct. However, platforms without integer
overflow builtins or 128-bit integers would fail to spot the overflow,
and incorrectly return INT64_MIN.

Back-patch to all supported branches.

Patch be me. Thanks to Jian He for initial investigation, and Laurenz
Albe and Tom Lane for review.

Discussion: https://postgr.es/m/CAEZATCUNK-AZSD0jVdgkk0N%3DNcAXBWeAEX-QU9AnJPensikmdQ%40mail.gmail.com
2023-11-09 09:53:05 +00:00
..
backend Enlarge assertion in bloom_init() for false_positive_rate 2023-11-08 14:06:36 +09:00
bin Translation updates 2023-11-06 13:10:09 +01:00
common Improve pglz_decompress's defenses against corrupt compressed data. 2023-10-18 20:43:17 -04:00
fe_utils Don't spuriously report FD_SETSIZE exhaustion on Windows. 2023-10-14 15:54:49 -07:00
include Fix corner-case 64-bit integer subtraction bug on some platforms. 2023-11-09 09:53:05 +00:00
interfaces Call pqPipelineFlush from PQsendFlushRequest 2023-11-08 16:44:08 +01:00
makefiles Use --strip-unneeded when stripping static libraries with GNU strip. 2023-04-20 18:12:32 -04:00
pl Translation updates 2023-11-06 13:10:09 +01:00
port Meson: check for pg_config_paths.h left over from make 2023-08-24 10:33:48 +12:00
template Use unnamed POSIX semaphores on Cygwin. 2023-01-06 10:33:28 +13:00
test Fix corner-case 64-bit integer subtraction bug on some platforms. 2023-11-09 09:53:05 +00:00
timezone Remove PHOT from our default timezone abbreviations list. 2023-10-28 11:54:51 -04:00
tools Fix exception safety bug in typcache.c. 2023-09-13 15:06:07 +12:00
tutorial Pre-beta mechanical code beautification. 2023-05-19 17:24:48 -04:00
.gitignore
DEVELOPERS
Makefile Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
Makefile.global.in Suppress macOS warnings about duplicate libraries in link commands. 2023-09-29 14:07:30 -04:00
Makefile.shlib Stop using "-multiply_defined suppress" on macOS. 2023-09-26 21:06:21 -04:00
meson.build Integrate pg_bsd_indent into our build/test infrastructure. 2023-02-12 12:22:21 -05:00
nls-global.mk Fix for make unportability 2022-07-13 09:15:01 +02:00