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| author | Andres Freund | 2017-10-30 05:13:54 +0000 |
|---|---|---|
| committer | Andres Freund | 2017-12-13 00:55:37 +0000 |
| commit | 4d6ad31257adaf8a51e1c4377d96afa656d9165f (patch) | |
| tree | 71d0e8fffcaa28226dc580495273d2a428f2e94d /contrib/btree_gist/btree_cash.c | |
| parent | 95b52351fe966c93791462274dfa7af7e50d2da1 (diff) | |
Provide overflow safe integer math inline functions.
It's not easy to get signed integer overflow checks correct and
fast. Therefore abstract the necessary infrastructure into a common
header providing addition, subtraction and multiplication for 16, 32,
64 bit signed integers.
The new macros aren't yet used, but a followup commit will convert
several open coded overflow checks.
Author: Andres Freund, with some code stolen from Greg Stark
Reviewed-By: Robert Haas
Discussion: https://postgr.es/m/[email protected]
Diffstat (limited to 'contrib/btree_gist/btree_cash.c')
0 files changed, 0 insertions, 0 deletions