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Update dependencies and make use of modern idioms (#16)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,12 +1,8 @@ | ||
| version: 2 | ||
| updates: | ||
| - package-ecosystem: nuget | ||
| directory: "/" | ||
| directory: '/' | ||
| schedule: | ||
| interval: monthly | ||
| time: "10:00" | ||
| interval: weekly | ||
| time: '10:00' | ||
| open-pull-requests-limit: 10 | ||
| # ignore: | ||
| # - dependency-name: Microsoft.CodeAnalysis.FxCopAnalyzers | ||
| # versions: | ||
| # - 3.3.2 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,52 +1,51 @@ | ||
| using System; | ||
| using System.Runtime.InteropServices; | ||
|
|
||
| namespace IntroToSpans | ||
| namespace IntroToSpans; | ||
|
|
||
| /// <summary> | ||
| /// Getting familiar with Span<T>... | ||
| /// </summary> | ||
| /// <see href="https://github.com/dotnet/corefxlab/blob/master/docs/specs/span.md"/> | ||
| /// <see href="https://docs.microsoft.com/en-us/archive/msdn-magazine/2018/january/csharp-all-about-span-exploring-a-new-net-mainstay"/> | ||
| internal class Program | ||
| { | ||
| /// <summary> | ||
| /// Getting familiar with Span<T>... | ||
| /// </summary> | ||
| /// <see href="https://github.com/dotnet/corefxlab/blob/master/docs/specs/span.md"/> | ||
| /// <see href="https://docs.microsoft.com/en-us/archive/msdn-magazine/2018/january/csharp-all-about-span-exploring-a-new-net-mainstay"/> | ||
| internal class Program | ||
| private static void Main() | ||
| { | ||
| private static void Main() | ||
| { | ||
| TestSpanWithAllMemoryTypes(); | ||
| } | ||
| TestSpanWithAllMemoryTypes(); | ||
| } | ||
|
|
||
| private static void TestSpanWithAllMemoryTypes() | ||
| { | ||
| // managed memory | ||
| var byteArray = new byte[100]; | ||
| Span<byte> byteSpanOnManagedMemory = byteArray; | ||
|
|
||
| private static void TestSpanWithAllMemoryTypes() | ||
| // native memory | ||
| var nativeMemory = Marshal.AllocHGlobal(100); | ||
| Span<byte> byteSpanOnNativeMemory; | ||
| unsafe | ||
| { | ||
| // managed memory | ||
| var byteArray = new byte[100]; | ||
| Span<byte> byteSpanOnManagedMemory = byteArray; | ||
|
|
||
| // native memory | ||
| var nativeMemory = Marshal.AllocHGlobal(100); | ||
| Span<byte> byteSpanOnNativeMemory; | ||
| unsafe | ||
| { | ||
| byteSpanOnNativeMemory = new Span<byte>(nativeMemory.ToPointer(), 100); | ||
| } | ||
|
|
||
| SafeSum(byteSpanOnNativeMemory); | ||
| Marshal.FreeHGlobal(nativeMemory); | ||
|
|
||
| // stack memory | ||
| Span<byte> byteSpanOnStackMemory = stackalloc byte[100]; | ||
| SafeSum(byteSpanOnStackMemory); | ||
| byteSpanOnNativeMemory = new Span<byte>(nativeMemory.ToPointer(), 100); | ||
| } | ||
|
|
||
| // this method does not care what kind of memory it works on | ||
| private static ulong SafeSum(Span<byte> bytes) | ||
| { | ||
| ulong sum = 0; | ||
| for (var i = 0; i < bytes.Length; i++) | ||
| { | ||
| sum += bytes[i]; | ||
| } | ||
| SafeSum(byteSpanOnNativeMemory); | ||
| Marshal.FreeHGlobal(nativeMemory); | ||
|
|
||
| // stack memory | ||
| Span<byte> byteSpanOnStackMemory = stackalloc byte[100]; | ||
| SafeSum(byteSpanOnStackMemory); | ||
| } | ||
|
|
||
| return sum; | ||
| // this method does not care what kind of memory it works on | ||
| private static ulong SafeSum(Span<byte> bytes) | ||
| { | ||
| ulong sum = 0; | ||
| for (var i = 0; i < bytes.Length; i++) | ||
| { | ||
| sum += bytes[i]; | ||
| } | ||
|
|
||
| return sum; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,13 @@ | ||
| using System; | ||
|
|
||
| namespace TestingSpan | ||
| namespace TestingSpan; | ||
|
|
||
| public static class StringExtensions | ||
| { | ||
| public static class StringExtensions | ||
| { | ||
| public static readonly char[] WordSeparators = new[] { ' ', '\r', '\n', '\t' }; | ||
| public static readonly char[] WordSeparators = [' ', '\r', '\n', '\t']; | ||
|
|
||
| public static WordEnumerator SplitIntoWords(this string str) | ||
| { | ||
| return new WordEnumerator(str.AsSpan()); // WordEnumerator is a struct -> no heap allocation here | ||
| } | ||
| public static WordEnumerator SplitIntoWords(this string str) | ||
| { | ||
| return new WordEnumerator(str.AsSpan()); // WordEnumerator is a struct -> no heap allocation here | ||
| } | ||
| } |
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