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I can't have a decent view of a basic std:string in VS2015 while debugging. I followed the instructions given at this address :https://msdn.microsoft.com/fr-fr/library/jj620914.aspx (that is debugger type set to native mode, and uncheck both Use Managed Compatibility Mode and Use Native Compatibility Mode) . I have also added the stl.nativs file to my solution.

Currently my debugger looks like : enter image description here

I would like to see as a value directly "test" for my variable str (instead of a very complex tree). Can you help me with this ?

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2 回答 2

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我找到了答案，出于一个非常奇怪的原因，调试器无法自动识别我在 VS 安装目录（对我而言）中找到的 stl.natvis 文件并且C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Packages\Debugger\Visualizers我添加到我的项目中。

所以解决方案是在Debugger visualization file (.natvis)我的解决方案中添加另一个（右键单击->添加新项目）并将文件的内容复制/粘贴 stl.natvis到这个新文件中。重建后，调试器会适当地显示标准 std:string。

为了完整起见，请参阅下面stl.natvis处理 Visual Studio 2015 的 std::string 的部分。

<!-- VC 2015 -->
  <Type Name="std::basic_string&lt;char,*&gt;">
    <DisplayString Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Buf,na}</DisplayString>
    <DisplayString Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Ptr,na}</DisplayString>
    <StringView Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf,na</StringView>
    <StringView Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr,na</StringView>
    <Expand>
      <Item Name="[size]" ExcludeView="simple">_Mypair._Myval2._Mysize</Item>
      <Item Name="[capacity]" ExcludeView="simple">_Mypair._Myval2._Myres</Item>
      <Item Name="[allocator]" ExcludeView="simple">_Mypair</Item>
      <ArrayItems>
        <Size>_Mypair._Myval2._Mysize</Size>
        <ValuePointer Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf</ValuePointer>
        <ValuePointer Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr</ValuePointer>
      </ArrayItems>
    </Expand>
  </Type>

  <!-- VC 2015 -->
  <Type Name="std::basic_string&lt;wchar_t,*&gt;">
    <AlternativeType Name="std::basic_string&lt;unsigned short,*&gt;" />
    <AlternativeType Name="std::basic_string&lt;char16_t,*&gt;" />
    <DisplayString Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Buf,su}</DisplayString>
    <DisplayString Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Ptr,su}</DisplayString>
    <StringView Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf,su</StringView>
    <StringView Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr,su</StringView>
    <Expand>
      <Item Name="[size]" ExcludeView="simple">_Mypair._Myval2._Mysize</Item>
      <Item Name="[capacity]" ExcludeView="simple">_Mypair._Myval2._Myres</Item>
      <Item Name="[allocator]" ExcludeView="simple">_Mypair</Item>
      <ArrayItems>
        <Size>_Mypair._Myval2._Mysize</Size>
        <ValuePointer Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf</ValuePointer>
        <ValuePointer Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr</ValuePointer>
      </ArrayItems>
    </Expand>
  </Type>

  <Type Name="std::basic_string&lt;char32_t,*&gt;">
    <DisplayString Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Buf,s32}</DisplayString>
    <DisplayString Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">{_Mypair._Myval2._Bx._Ptr,s32}</DisplayString>
    <StringView Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf,s32</StringView>
    <StringView Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr,s32</StringView>
    <Expand>
      <Item Name="[size]" ExcludeView="simple">_Mypair._Myval2._Mysize</Item>
      <Item Name="[capacity]" ExcludeView="simple">_Mypair._Myval2._Myres</Item>
      <Item Name="[allocator]" ExcludeView="simple">_Mypair</Item>
      <ArrayItems>
        <Size>_Mypair._Myval2._Mysize</Size>
        <ValuePointer Condition="_Mypair._Myval2._Myres &lt; _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Buf</ValuePointer>
        <ValuePointer Condition="_Mypair._Myval2._Myres &gt;= _Mypair._Myval2._BUF_SIZE">_Mypair._Myval2._Bx._Ptr</ValuePointer>
      </ArrayItems>
    </Expand>
  </Type>

编辑

请参阅下面的最终手表控制台：（另请注意，您应该只复制stl.natvis您想要的部分，似乎完整的复制/过去不起作用。）

在此处输入图像描述

于 2016-10-24T12:32:23.780 回答
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我发现您在 VS 中选择的语言会影响这一点。.natvis xml 文件的架构在 $(VSINSTALLDIR)/xml/schemas/$(LANG)/natvis.xsd 中定义，在我的计算机中有两个版本：1033 和 2052，后者比另一个更新，它定义了更多元素（例如在 stl.nativs 中使用的 <SmartPointerUsage>）。如果您发现调试器的变量检查不起作用，您可以尝试将语言更改为具有较新 natvis.xsd 的特殊语言。

于 2017-03-18T05:45:09.410 回答