[tarantool-patches] [PATCH v4 0/2] Introduce decimal type to tarantool core.
Serge Petrenko
sergepetrenko at tarantool.org
Tue Jun 11 19:02:32 MSK 2019
> 11 июня 2019 г., в 19:01, Serge Petrenko <sergepetrenko at tarantool.org> написал(а):
>
> My bad, issue and branch are below.
> https://github.com/tarantool/tarantool/issues/692 <https://github.com/tarantool/tarantool/issues/692>
> https://github.com/tarantool/tarantool/tree/sp/gh-692-mp-encode-decimal <https://github.com/tarantool/tarantool/tree/sp/gh-692-mp-encode-decimal>
Branch: https://github.com/tarantool/tarantool/tree/sp/gh-692-introduce-decimal <https://github.com/tarantool/tarantool/tree/sp/gh-692-introduce-decimal>
Sorry.
>
> --
> Serge Petrenko
> sergepetrenko at tarantool.org <mailto:sergepetrenko at tarantool.org>
>
>
>
>
>> 11 июня 2019 г., в 18:56, Serge Petrenko <sergepetrenko at tarantool.org <mailto:sergepetrenko at tarantool.org>> написал(а):
>>
>> This patchset adds a new type, decimal fixed-point, to tarantool,
>> together with methods to pack/unpack decimals, arithmetic operations
>> ad math functions.
>>
>> The first patch adds decNumber library as a submodule.
>>
>> The second patch adds a small wrapper to the library to make it work
>> with fixed-point decimal values, and adds a unit test.
>> To evaluate number precision and scale from exponent and the amount of
>> significant digits the following formulas are applied:
>> If exponent < 0 then precision = MAX(digits, -exponent) and scale = -exponent
>> If exponent > 0 then precision = digits + exponent, and scale = 0
>>
>> Changes in v4:
>> - review fixes as per review
>> from @locker.
>> - remove patches 3 and 4,
>> add decimal_pack/unpack as
>> a preparation for patches
>> 4 and 4 to patch 2.
>>
>> Changes in v3:
>> - add patches 3 and 4 to
>> encode/decode decimals
>> as msgpack.
>>
>> Changes in v2:
>> - get rid of explicit precision and scale,
>> evaluate them from decNumber digits and exponent.
>> - decimal is now an alias for decNumber
>> - ln, log10, exp, sqrt, pow now accept precision to
>> which the result should be rounded.
>>
>> Serge Petrenko (2):
>> third-party: add decNumber library
>> lib/core: introduce decimal type to tarantool
>>
>> .gitmodules | 3 +
>> CMakeLists.txt | 7 +
>> cmake/BuildDecNumber.cmake | 14 ++
>> src/CMakeLists.txt | 1 +
>> src/lib/core/CMakeLists.txt | 3 +-
>> src/lib/core/decimal.c | 354 +++++++++++++++++++++++++++++++
>> src/lib/core/decimal.h | 206 ++++++++++++++++++
>> test/unit/CMakeLists.txt | 2 +
>> test/unit/decimal.c | 174 ++++++++++++++++
>> test/unit/decimal.result | 406 ++++++++++++++++++++++++++++++++++++
>> third_party/decNumber | 1 +
>> 11 files changed, 1170 insertions(+), 1 deletion(-)
>> create mode 100644 cmake/BuildDecNumber.cmake
>> create mode 100644 src/lib/core/decimal.c
>> create mode 100644 src/lib/core/decimal.h
>> create mode 100644 test/unit/decimal.c
>> create mode 100644 test/unit/decimal.result
>> create mode 160000 third_party/decNumber
>>
>> --
>> 2.20.1 (Apple Git-117)
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.tarantool.org/pipermail/tarantool-patches/attachments/20190611/45566c18/attachment.html>
More information about the Tarantool-patches
mailing list