| commit | b15afff85c2eddec43025a1e7a63d7916c7d102e | |
| author | Olly Betts <olly@survex.com> | |
| Thu, 28 Apr 2022 06:21:27 +0000 (28 18:21 +1200) | ||
| committer | Olly Betts <olly@survex.com> | |
| Mon, 2 May 2022 21:38:11 +0000 (3 09:38 +1200) | ||
| tree | 207d2f77ab5a15a4490ef9bf746b2717a03a5e60 | treesnapshot (tar.gz zip) |
| parent | cd68a4dc667b80e77acb121b8fa3d66bf08e520b | commitdiff |
Add function to subtract with overflow check
This is implemented with compiler builtins or equivalent where possible,
so the overflow check will typically just require a check of the
processor's overflow or carry flag.
(cherry picked from commit 54fe547542543fa983f9f31d496a7a6b2fdba545)
This is implemented with compiler builtins or equivalent where possible,
so the overflow check will typically just require a check of the
processor's overflow or carry flag.
(cherry picked from commit 54fe547542543fa983f9f31d496a7a6b2fdba545)