RangeForeach.Sources
1.2.8
dotnet add package RangeForeach.Sources --version 1.2.8
NuGet\Install-Package RangeForeach.Sources -Version 1.2.8
<PackageReference Include="RangeForeach.Sources" Version="1.2.8"> <PrivateAssets>all</PrivateAssets> <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets> </PackageReference>
paket add RangeForeach.Sources --version 1.2.8
#r "nuget: RangeForeach.Sources, 1.2.8"
// Install RangeForeach.Sources as a Cake Addin #addin nuget:?package=RangeForeach.Sources&version=1.2.8 // Install RangeForeach.Sources as a Cake Tool #tool nuget:?package=RangeForeach.Sources&version=1.2.8
C# Range-Foreach Syntax Extensions
Provides the range-foreach syntax for C# 9.0 or higher.
Supported frameworks:
- .NET Framework >= 3.5
- .NET Core >= 1.0
- .NET Standard >= 1.0
Range-Foreach Syntax
Reference source files or the NuGet package to write foreach loops like this:
foreach (var index in 0..100)
{
// loop body...
}
which is equivalent to the legacy for loop below:
for (int index = 0; index < 100; index++)
{
// loop body...
}
TIPS: 0
can be omitted in range expressions, e.g. ..100
(equivalent to 0..100
).
NOTE: Use ^
to represent negative numbers, e.g. ^100..0
(instead of -100..0
).
Stepped Syntax
Use the Step
method to write foreach loops like this:
foreach (var index in (99..^1).Step(-2))
{
// loop body...
}
which is equivalent to the legacy for loop below:
for (int index = 99; index > -1; index -= 2)
{
// loop body...
}
Dependency Type Polyfill
This syntax requires the System.Range
type (and also the System.Index
type).
Considering that early frameworks do not provide this type, this project includes the polyfill source.
If a third party package that includes the System.Range
type (such as IndexRange
, etc.) is referenced,
define the INDEX_RANGE_EXTERNAL
constant in the project file to avoid duplicate definitions:
<DefineConstants>$(DefineConstants);INDEX_RANGE_EXTERNAL</DefineConstants>
Performance Benchmark
BenchmarkDotNet v0.13.10, Windows 11 (10.0.22631.2792/23H2/2023Update/SunValley3)
AMD Ryzen 7 5800H with Radeon Graphics, 1 CPU, 16 logical and 8 physical cores
.NET SDK 8.0.100
[Host] : .NET 8.0.0 (8.0.23.53103), X64 RyuJIT AVX2
DefaultJob : .NET 8.0.0 (8.0.23.53103), X64 RyuJIT AVX2
Method | LoopCount | Mean | StdDev | Ratio | Code Size |
---|---|---|---|---|---|
CounterFor |
1 | 0.0037 ns | 0.0032 ns | ? | 20 B |
RangeForeach |
1 | 0.0026 ns | 0.0010 ns | ? | 39 B |
SteppedRangeForeach |
1 | 0.0051 ns | 0.0022 ns | ? | 39 B |
EnumerableRangeForeach |
1 | 7.2937 ns | 0.1077 ns | ? | 593 B |
CounterFor |
3 | 0.4622 ns | 0.0033 ns | 1.00 | 20 B |
RangeForeach |
3 | 0.4623 ns | 0.0011 ns | 1.00 | 39 B |
SteppedRangeForeach |
3 | 0.4639 ns | 0.0034 ns | 1.00 | 39 B |
EnumerableRangeForeach |
3 | 9.4142 ns | 0.1430 ns | 20.37 | 644 B |
CounterFor |
10 | 2.1077 ns | 0.0098 ns | 1.00 | 20 B |
RangeForeach |
10 | 2.1039 ns | 0.0019 ns | 1.00 | 39 B |
SteppedRangeForeach |
10 | 2.1064 ns | 0.0055 ns | 1.00 | 39 B |
EnumerableRangeForeach |
10 | 14.0306 ns | 0.0623 ns | 6.66 | 644 B |
CounterFor |
100 | 26.3959 ns | 0.0289 ns | 1.00 | 20 B |
RangeForeach |
100 | 27.8959 ns | 0.0137 ns | 1.06 | 39 B |
SteppedRangeForeach |
100 | 27.9739 ns | 0.0267 ns | 1.06 | 39 B |
EnumerableRangeForeach |
100 | 64.2927 ns | 0.4154 ns | 2.44 | 644 B |
CounterFor |
1000 | 230.8943 ns | 0.1496 ns | 1.00 | 20 B |
RangeForeach |
1000 | 235.6411 ns | 0.1965 ns | 1.02 | 39 B |
SteppedRangeForeach |
1000 | 235.9903 ns | 0.3364 ns | 1.02 | 39 B |
EnumerableRangeForeach |
1000 | 513.7996 ns | 1.7926 ns | 2.23 | 644 B |
Learn more about Target Frameworks and .NET Standard.
This package has no dependencies.
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.
Version | Downloads | Last updated | |
---|---|---|---|
1.2.8 | 222 | 2/8/2024 | |
1.2.5 | 240 | 1/12/2024 | |
1.2.0 | 231 | 12/6/2023 | |
1.1.0 | 285 | 4/4/2023 | |
1.0.1 | 259 | 3/12/2023 | |
1.0.0 | 260 | 3/12/2023 | |
0.9.0 | 303 | 3/8/2023 | |
0.8.5 | 252 | 3/7/2023 | |
0.8.1 | 327 | 3/5/2023 | |
0.8.0 | 302 | 3/5/2023 | |
0.7.0 | 357 | 1/19/2023 | |
0.6.0 | 303 | 12/31/2022 | |
0.5.0 | 444 | 9/27/2022 | |
0.4.0 | 467 | 7/20/2022 | |
0.2.0 | 471 | 7/19/2022 | |
0.1.1 | 544 | 7/5/2022 | |
0.1.0 | 437 | 7/3/2022 |