diff options
| author | Noel Grandin <noel@peralex.com> | 2021-01-06 10:10:39 +0200 |
|---|---|---|
| committer | Noel Grandin <noel.grandin@collabora.co.uk> | 2021-01-06 11:38:01 +0100 |
| commit | 2298b055cab8cf8d0268ee1375a5c6e416bf1332 (patch) | |
| tree | 1fe4b266d730e13591506434ccbbeefe9cd053ff /tools/source | |
| parent | 9b36cae4ca95ab9508752f2a13a45d09c3dbd87f (diff) | |
move the bigint based Scale() implementations to one central place
Picking the best looking one in the process.
Change-Id: I77f9236fcd21f883a23fe2f43f20336f17b44cc6
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108831
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Diffstat (limited to 'tools/source')
| -rw-r--r-- | tools/source/generic/bigint.cxx | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/source/generic/bigint.cxx b/tools/source/generic/bigint.cxx index 62350a30c311..6616ef76f423 100644 --- a/tools/source/generic/bigint.cxx +++ b/tools/source/generic/bigint.cxx @@ -843,4 +843,20 @@ bool operator<( const BigInt& rVal1, const BigInt& rVal2 ) return nA.bIsNeg ? (nA.nNum[i] > nB.nNum[i]) : (nA.nNum[i] < nB.nNum[i]); } +tools::Long BigInt::Scale( tools::Long nVal, tools::Long nMul, tools::Long nDiv ) +{ + BigInt aVal( nVal ); + + aVal *= nMul; + + if ( aVal.IsNeg() != ( nDiv < 0 ) ) + aVal -= nDiv / 2; // for correct rounding + else + aVal += nDiv / 2; // for correct rounding + + aVal /= nDiv; + + return tools::Long( aVal ); +} + /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |