静态析构函数被提前调用
尽管我读过类似的问题，但这个问题似乎与典型问题完全相反（静态析构函数未被调用）。我正在用 C++ 编写一个游戏引擎，其中有几个变量作为静态类成员。但是，似乎我没有正确初始化或使用它，因为每当我尝试调用静态成员的析构函数时都会调用它。这是成员的定义和声明：（
static CRendering RENDER_PIPELINE;
在 CDisplay.h 中）
CRendering CDisplayCore::RENDER_PIPELINE;
（在 CDisplay.cpp 中）
这是一个调用堆栈，显示析构函数调用，就在我使用静态变量的一种方法之后：
#0 ( Seventh::CRendering::~CRendering(this=0x7fffffffe5f0, __in_chrg=<value optimized out>) (/home/alberto/SeventhEngine/src/Rendering/CRendering.cpp:38)
#1 0x4152d9 Seventh::CEntity::UpdateGameLogic(this=0x8812f0) (/home/alberto/SeventhEngine/src/EntityCore/CEntity.cpp:109)
#2 0x416b68 Seventh::UpdateGameLogicGeneric<std::basic_string<char>, Seventh::CEntity*>(map=...) (include/functors.h:64)
#3 0x416968 Seventh::CEntityManager::UpdateGameLogic(this=0x63dc10) (/home/alberto/SeventhEngine/src/EntityCore/CEntityManager.cpp:65)
#4 0x413122 Seventh::CEngine::UpdateGameLogic(this=0x63dab0) (/home/alberto/SeventhEngine/src/Engine/CEngine.cpp:175)
#5 0x412fe6 Seventh::CEngine::RunGame(this=0x63dab0) (/home/alberto/SeventhEngine/src/Engine/CEngine.cpp:130)
#6 0x40e027 main(argc=1, argv=0x7fffffffe8d8) (/home/alberto/SeventhEngine/main.cpp:31)
CEntity::UpdateGameLogic 中的代码是：
CDisplay::_Render().RenderTexture(...);
RenderTexture是CRendering的一种方法。 _Render() 是成员的静态 getter。
这里可能有什么问题？
编辑 _Render() 的定义
static inline CRendering _Render()
{
return RENDER_PIPELINE;
}
Although I have read the similar questions, this problem seems to be the exact opposite of the typical ones (static destructors not being called). I'm writing a game engine in C++, in which I have several vars as static class members. However, it seems that I am not initiallizing or using it properly, because the destructor for the static member gets called whenever I try to call it. This is the definition and declaration of the member:
static CRendering RENDER_PIPELINE;
(in CDisplay.h)
CRendering CDisplayCore::RENDER_PIPELINE;
(in CDisplay.cpp)
Here is a call stack showing the destructor call, right after I use one method of the static var:
#0 ( Seventh::CRendering::~CRendering(this=0x7fffffffe5f0, __in_chrg=<value optimized out>) (/home/alberto/SeventhEngine/src/Rendering/CRendering.cpp:38)
#1 0x4152d9 Seventh::CEntity::UpdateGameLogic(this=0x8812f0) (/home/alberto/SeventhEngine/src/EntityCore/CEntity.cpp:109)
#2 0x416b68 Seventh::UpdateGameLogicGeneric<std::basic_string<char>, Seventh::CEntity*>(map=...) (include/functors.h:64)
#3 0x416968 Seventh::CEntityManager::UpdateGameLogic(this=0x63dc10) (/home/alberto/SeventhEngine/src/EntityCore/CEntityManager.cpp:65)
#4 0x413122 Seventh::CEngine::UpdateGameLogic(this=0x63dab0) (/home/alberto/SeventhEngine/src/Engine/CEngine.cpp:175)
#5 0x412fe6 Seventh::CEngine::RunGame(this=0x63dab0) (/home/alberto/SeventhEngine/src/Engine/CEngine.cpp:130)
#6 0x40e027 main(argc=1, argv=0x7fffffffe8d8) (/home/alberto/SeventhEngine/main.cpp:31)
The code in CEntity::UpdateGameLogic is:
CDisplay::_Render().RenderTexture(...);
RenderTexture is a method of CRendering. _Render() is an static getter for the member.
What can be the problem here?
Edit Definition of _Render()
static inline CRendering _Render()
{
return RENDER_PIPELINE;
}
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您的
_Render()函数返回CRendering对象的副本。尝试将其更改为：上面的声明将返回单个静态
CRendering对象的引用。如果没有&，C++ 将创建整个对象的副本，并从您的函数返回该副本（然后使用返回值的代码将在调用完成后立即调用该副本的析构函数） ）。Your
_Render()function returns a copy of theCRenderingobject. Try changing it to:The above declaration will return a reference to the single static
CRenderingobject. Without the&, C++ will make a copy of the entire object, and return that from your function (and then your code that uses the return value will call that copy's destructor immediately after it's done with the call).您将按值返回
CRendering，即副本。你看到的可能是副本的析构函数。也许你想要
You're returning
CRenderingby value, that is, a copy. What you see is probably a destructor of the copy.Maybe you wanted