double-conversion: Fast conversion between single and double precision floating point and text
A library that performs fast, accurate conversion between floating point and text.
This library is implemented as bindings to the C++
double-conversion library written by Florian Loitsch at Google:
https://github.com/floitsch/double-conversion.
Now it can convert single precision numbers, and also it can create Builder, instead of bytestring or text.
The Text versions of these functions are about 30 times faster
than the default show implementation for the Double type.
The ByteString versions are have very close speed to the Text versions;
Builder versions (both for Text and Bytestring) are slower on single value, but they are much faster on large number of values (up to 20x faster on list with 20000 doubles).
As a final note, be aware that the bytestring-show package is
about 50% slower than simply using show.
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Flags
Manual Flags
| Name | Description | Default |
|---|---|---|
| developer | operate in developer mode | Disabled |
Automatic Flags
| Name | Description | Default |
|---|---|---|
| embedded_double_conversion | embed the C++ double_conversion library | Enabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
Downloads
- double-conversion-2.0.5.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
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| Versions [RSS] | 0.1.0.0, 0.2.0.0, 0.2.0.1, 0.2.0.3, 0.2.0.4, 0.2.0.5, 0.2.0.6, 2.0.1.0, 2.0.2.0, 2.0.3.0, 2.0.4.0, 2.0.4.1, 2.0.4.2, 2.0.5.0 (info) |
|---|---|
| Dependencies | base (>=4 && <5), bytestring , ghc-prim , system-cxx-std-lib (==1.0), text (>=0.11.0.8) [details] |
| Tested with | ghc ==9.0.2 || ==9.2.8 || ==9.4.7 || ==9.6.2 |
| License | BSD-2-Clause |
| Author | Bryan O'Sullivan <bos@serpentine.com> |
| Maintainer | Bryan O'Sullivan <bos@serpentine.com> |
| Category | Text |
| Home page | https://github.com/haskell/double-conversion |
| Bug tracker | https://github.com/haskell/double-conversion/issues |
| Source repo | head: git clone https://github.com/haskell/double-conversion |
| Uploaded | by Haskell_Mouse at 2024年02月11日T15:24:21Z |
| Distributions | Arch:2.0.5.0, Debian:2.0.2.0, Fedora:2.0.5.0, FreeBSD:2.0.1.0, LTSHaskell:2.0.5.0, NixOS:2.0.5.0, Stackage:2.0.5.0 |
| Reverse Dependencies | 34 direct, 8511 indirect [details] |
| Downloads | 54715 total (59 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
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| Status | Docs uploaded by user Build status unknown [no reports yet] |
Readme for double-conversion-2.0.5.0
[back to package description]Welcome to double-conversion
double-conversion is a fast Haskell library for converting between double precision floating point numbers and text strings. It is implemented as a binding to the V8-derived C++ double-conversion library.
Join in!
We are happy to receive bug reports, fixes, documentation enhancements, and other improvements.
Please report bugs via the github issue tracker.
Master git repository:
git clone git://github.com/haskell/double-conversion
Authors
This library is written and maintained by Bryan O'Sullivan, bos@serpentine.com.