RangeExtensions 1.0.0

.NET 6.0 .NET Core 3.1 .NET Standard 2.0

There is a newer version of this package available.
See the version list below for details.

dotnet add package RangeExtensions --version 1.0.0

NuGet\Install-Package RangeExtensions -Version 1.0.0

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="RangeExtensions" Version="1.0.0" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

paket add RangeExtensions --version 1.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: RangeExtensions, 1.0.0"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

// Install RangeExtensions as a Cake Addin
#addin nuget:?package=RangeExtensions&version=1.0.0

// Install RangeExtensions as a Cake Tool
#tool nuget:?package=RangeExtensions&version=1.0.0

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

RangeExtensions

Extensions for Range type that provide support for 'foreach' and additional IEnumerable-compatible features.

Correctness is verified against standard IEnumerable<int> behavior.
Performance is hand tuned to produce efficient native code with no allocations as long as RangeEnumerable isn't boxed into IEnumerable<int> (same applies to enumerator).

Features

Range enumeration

foreach (var i in 0..100)
{
    Console.WriteLine(i);
}

Reverse range enumeration

for (var i = 100 - 1; i >= 0; i--)
{
    Console.WriteLine(i);
}

// Can be written as
foreach (var i in 100..0)
{
    Console.WriteLine(i);
}

Collecting to array or list

var numbers = (0..100).ToArray();

Other IEnumerable APIs (some methods have bespoke implementations for performance)

var firstTen = (400...720).AsEnumerable().Take(10);

Performance

In short: 10x fast vs Enumerable.Range().


BenchmarkDotNet=v0.13.1, OS=Windows 10.0.22000
AMD Ryzen 7 5800X, 1 CPU, 16 logical and 8 physical cores
.NET SDK=7.0.100-rc.1.22363.32
  [Host]   : .NET 7.0.0 (7.0.22.36203), X64 RyuJIT
  ShortRun : .NET 7.0.0 (7.0.22.36203), X64 RyuJIT

Job=ShortRun  IterationCount=3  LaunchCount=1  
WarmupCount=3

Method	Length	Mean	Error	StdDev	Ratio	RatioSD	Code Size	Gen 0	Allocated
For	100	23.94 ns	0.556 ns	0.030 ns	1.00	0.00	20 B	-	-
Range	100	24.91 ns	0.138 ns	0.008 ns	1.04	0.00	65 B	-	-
RangeReverse	100	27.40 ns	0.245 ns	0.013 ns	1.14	0.00	65 B	-	-
EnumerableRange	100	269.46 ns	52.032 ns	2.852 ns	11.25	0.13	322 B	0.0024	40 B
RangeAsEnumerable	100	24.92 ns	0.522 ns	0.029 ns	1.04	0.00	67 B	-	-

For	10000	2,085.24 ns	300.295 ns	16.460 ns	1.00	0.00	20 B	-	-
Range	10000	2,085.39 ns	308.278 ns	16.898 ns	1.00	0.00	65 B	-	-
RangeReverse	10000	2,078.58 ns	81.149 ns	4.448 ns	1.00	0.01	65 B	-	-
EnumerableRange	10000	27,364.70 ns	616.148 ns	33.773 ns	13.12	0.11	322 B	-	40 B
RangeAsEnumerable	10000	2,104.25 ns	464.044 ns	25.436 ns	1.01	0.01	67 B	-	-

For	10000000	2,086,119.92 ns	289,496.016 ns	15,868.253 ns	1.00	0.00	20 B	-	-
Range	10000000	2,086,358.07 ns	335,673.174 ns	18,399.379 ns	1.00	0.02	65 B	-	-
RangeReverse	10000000	2,083,810.55 ns	342,667.388 ns	18,782.756 ns	1.00	0.01	65 B	-	-
EnumerableRange	10000000	27,263,256.25 ns	396,121.214 ns	21,712.740 ns	13.07	0.09	322 B	-	-
RangeAsEnumerable	10000000	2,075,666.41 ns	45,777.672 ns	2,509.229 ns	1.00	0.01	67 B	-	-

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 is compatible. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed.
.NET Core	netcoreapp2.0 was computed. netcoreapp2.1 was computed. netcoreapp2.2 was computed. netcoreapp3.0 was computed. netcoreapp3.1 is compatible.
.NET Standard	netstandard2.0 is compatible. netstandard2.1 is compatible.
.NET Framework	net461 was computed. net462 was computed. net463 was computed. net47 was computed. net471 was computed. net472 was computed. net48 was computed. net481 was computed.
MonoAndroid	monoandroid was computed.
MonoMac	monomac was computed.
MonoTouch	monotouch was computed.
Tizen	tizen40 was computed. tizen60 was computed.
Xamarin.iOS	xamarinios was computed.
Xamarin.Mac	xamarinmac was computed.
Xamarin.TVOS	xamarintvos was computed.
Xamarin.WatchOS	xamarinwatchos was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETCoreApp 3.1
- No dependencies.
.NETStandard 2.0
- IndexRange (>= 1.0.2)
.NETStandard 2.1
- No dependencies.
net6.0
- No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on RangeExtensions:

Repository	Stars
U8String/U8String [work-in-progress] Highly functional and performant UTF-8 string primitive for C#	152

Version	Downloads	Last updated
2.1.1	45,192	1/9/2023
2.1.0	310	1/8/2023
2.0.0	319	12/23/2022
1.2.2	716	9/3/2022
1.2.1	396	8/13/2022
1.2.0	384	8/10/2022
1.1.0	390	7/28/2022
1.0.0	409	7/16/2022

https://github.com/neon-sunset/RangeExtensions/releases/tag/1.0.0