Fix NullReferenceException in BTree.TryGetPreviousOrCurrentValue(..)
parent
21519c831c
commit
93b916b48c
79
BTree.cs
79
BTree.cs
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@ -259,44 +259,49 @@ namespace ln.collections
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return false;
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}
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public K PreviousOrCurrent(K current)
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{
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if (!TryGetPreviousOrCurrent(current, out K previousOrCurrent))
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throw new KeyNotFoundException();
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return previousOrCurrent;
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public K PreviousOrCurrent(K current)
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{
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if (!TryGetPreviousOrCurrent(current, out K previousOrCurrent))
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throw new KeyNotFoundException();
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return previousOrCurrent;
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}
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public bool TryGetPreviousOrCurrent(K current, out K previousOrCurrent)
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{
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if (Empty)
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{
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previousOrCurrent = default(K);
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return false;
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}
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TreeNode next = FindFirstGE(current);
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if (next == null)
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previousOrCurrent = Last();
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else
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previousOrCurrent = Previous(next).Key;
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return true;
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}
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public bool TryGetPreviousOrCurrentValue(K current, out V previousOrCurrentValue)
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{
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if (Empty)
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{
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previousOrCurrentValue = default(V);
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return false;
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}
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TreeNode next = FindFirstGE(current);
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if (next == null)
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previousOrCurrentValue = LastValue();
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else
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{
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TreeNode previousNode = Previous(next);
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if (previousNode == null)
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previousOrCurrentValue = FirstValue();
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else
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previousOrCurrentValue = previousNode.Value;
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}
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return true;
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}
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public bool TryGetPreviousOrCurrent(K current, out K previousOrCurrent)
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{
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if (Empty)
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{
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previousOrCurrent = default(K);
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return false;
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}
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TreeNode next = FindFirstGE(current);
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if (next == null)
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previousOrCurrent = Last();
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else
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previousOrCurrent = Previous(next).Key;
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return true;
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}
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public bool TryGetPreviousOrCurrentValue(K current, out V previousOrCurrentValue)
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{
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if (Empty)
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{
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previousOrCurrentValue = default(V);
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return false;
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}
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TreeNode next = FindFirstGE(current);
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if (next == null)
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previousOrCurrentValue = LastValue();
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else
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previousOrCurrentValue = Previous(next).Value;
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return true;
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}
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@ -1,7 +1,13 @@
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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp2.1</TargetFramework>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
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<Version>0.1.1</Version>
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<Authors>Harald Wolff-Thobaben</Authors>
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<Company>l--n.de</Company>
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<AssemblyVersion>0.0.1.1</AssemblyVersion>
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<FileVersion>0.0.1.1</FileVersion>
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</PropertyGroup>
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<ItemGroup>
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