从托管代码包含时未定义shared_ptr

发布于 2024-11-25 01:05:43 字数 790 浏览 0 评论 0原文

我正在尝试围绕非托管 C++ 静态库编写托管包装器 (C++/CLI)，但遇到两个问题：

非托管库在其标头中使用 std::shared_ptr 。包含，并且标头作为非托管项目的一部分进行编译。但是，当我在托管项目中包含此标头时，我收到此错误：
错误 C2039：“shared_ptr”：不是“std”的成员
How do I access the Values collection of来自 C++/CLI 的 SortedDictionary？我似乎找不到任何正确语法的示例，并且 C# 样式语法无法编译。

#1 的代码：

// 1>Dummy.h(10): error C2039: 'shared_ptr' : is not a member of 'std'
#pragma once

#pragma managed(push, off)

#include <memory>

class Foo {};
typedef std::shared_ptr<Foo> FooPtr;

#pragma managed(pop)


using namespace System;

namespace Dummy {

    public ref class Class1
    {
    public:
        Class1(FooPtr);
    };
}

原文

I'm trying to write a managed wrapper (C++/CLI) around an unmanaged C++ static library and am having two problems:

The unmanaged library uses std::shared_ptr in its headers. <memory> is included, and the header compiles as part of an unmanaged project. When I include this header in the managed project, however, I receive this error:
error C2039: 'shared_ptr' : is not a member of 'std'
How do I access the Values collection of a SortedDictionary<K, V> from C++/CLI? I cannot seem to find any examples of the proper syntax, and the C#-style syntax does not compile.

Code for #1:

// 1>Dummy.h(10): error C2039: 'shared_ptr' : is not a member of 'std'
#pragma once

#pragma managed(push, off)

#include <memory>

class Foo {};
typedef std::shared_ptr<Foo> FooPtr;

#pragma managed(pop)


using namespace System;

namespace Dummy {

    public ref class Class1
    {
    public:
        Class1(FooPtr);
    };
}

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想你的星星会说话 2024-12-02 01:05:43

Shared_ptr 存在于<内存> 中，而不是<功能> 中。使其看起来类似于：

#pragma managed(push, off)
#include <memory>
#include "yourUnmanagedLibrary.h"
#pragma managed(pop)

第二个问题（请只问一个）：

using namespace System::Collections::Generic; 
...
    SortedDictionary<int, String^>^ coll = gcnew SortedDictionary<int, String^>;
    coll->Add(1, "one");
    coll->Add(0, "zero");
    for each (String^ value in coll->Values) {
        Console::WriteLine(value);
    }

shared_ptr lives in <memory> not <functional>. Make it look similar to this:

#pragma managed(push, off)
#include <memory>
#include "yourUnmanagedLibrary.h"
#pragma managed(pop)

Second question (ask only one please):

using namespace System::Collections::Generic; 
...
    SortedDictionary<int, String^>^ coll = gcnew SortedDictionary<int, String^>;
    coll->Add(1, "one");
    coll->Add(0, "zero");
    for each (String^ value in coll->Values) {
        Console::WriteLine(value);
    }

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