double-conversion: Fast conversion between single and double precision floating point and text

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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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embedded_double_conversion

embed the C++ double_conversion library

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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 2024-02-11T15:24:21Z
Distributions Arch:2.0.5.0, Debian:2.0.2.0, Fedora:2.0.4.2, FreeBSD:2.0.1.0, LTSHaskell:2.0.5.0, NixOS:2.0.5.0, Stackage:2.0.5.0
Reverse Dependencies 34 direct, 7905 indirect [details]
Downloads 53220 total (367 in the last 30 days)
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Status Docs uploaded by user
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Readme for double-conversion-2.0.5.0

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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.