| commit | 57c63e0fb2ec624f97153bcef8c0d014fe1653be | [log] [tgz] |
|---|---|---|
| author | Alberto Donizetti <alb.donizetti@gmail.com> | Sat Sep 28 19:02:15 2019 +0200 |
| committer | Alberto Donizetti <alb.donizetti@gmail.com> | Fri Oct 18 13:47:36 2019 +0000 |
| tree | da3d1a7e1012ef98bee98a52f1c780a1808a9f61 | |
| parent | 584ef455ac0cd08833c3d4c7f6cb284bdba627a0 [diff] |
math/bits: add Rem, Rem32, Rem64 The Div functions in math/bits (Div, Div32, and Div64) compute both quotients and remainders, but they panic if the quotients do not not fit a 32/64 uint. Since, on the other hand, the remainder will always fit the size of the divisor, it is useful to have Div variants that only compute the remainder, and don't panic on a quotient overflow. This change adds to the math/bits package three new functions: Rem(hi, lo, y uint) uint Rem32(hi, lo, y uint32) uint32 Rem64(hi, lo, y uint64) uint64 which can be used to compute (hi,lo)%y even when the quotient overflows the uint size. Fixes #28970 Change-Id: I119948429f737670c5e5ceb8756121e6a738dbdc Reviewed-on: https://go-review.googlesource.com/c/go/+/197838 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
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