针对你遇到的“undefined reference to log4cplus::logger::getinstance”问题,这通常是因为链接器找不到log4cplus库中定义的相应函数。以下是基于你提供的提示,逐步分析和解决这个问题的建议: 检查代码中是否已包含log4cplus库 确保你的项目中已经包含了log4cplus的头文件。通常,这需要在你的代码中包含类似以下...
{ //其他成员 public: static CSingleton* GetInstance(); int age; private: CSingleton(){}; static CSingleton* m_pInstance; }; CSingleton* CSingleton::GetInstance() { if ( m_pInstance == NULL ) //判断是否第一次调用 m_pInstance = new CSingleton(); ...
静态成员变量需要在类体外定义，类体里的只算是声明：看如下的修改：include<iostream>using namespace std;class CSingleton{ //其他成员public: static CSingleton* GetInstance(); int age; private: CSingleton(){}; static CSingleton* m_pInstance;};CSingleton* CSingleton::...
FSM.cpp:(.text+0x2a9): undefined reference to `DDSDomainParticipantFactory::get_instance()' /usr/bin/ld: FSM.cpp:(.text+0x2d2): undefined reference to `DDS_PARTICIPANT_QOS_DEFAULT' /usr/bin/ld: warning: creating DT_TEXTREL in a PIE ...
访问类的静态成员变量的时候出现undefined reference to #include <iostream> using namespace std; class CSingleton { //其他成员 public: static CSingleton* GetInstance(); int age; private: CSingleton(){}; static CSingleton* m_pInstance; }; CSi
Warning: resolving _vkDestroyInstance@8 by linking to _vkDestroyInstance CMakeFiles/vulkan.dir/objects.a(vulkan.c.obj):vulkan.c:(.text+0x37bb): undefined reference to `aligned_alloc' collect2.exe: error: ld returned 1 exit status make[2]: *** [tests/vulkan.exe] Error 1 make[1]: ...
more about iOS versioning at # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html version: 1.0.0+1 environment: sdk: ">=2.17.5 <3.0.0" # Dependencies specify other packages that your package needs in order to work. ...
getInstance().addEventListener(AIEvent.DOCUMENT_NEW, function(event) { alert("Extension received DOCUMENT_NEW event"); }); To: AIEventAdapter.getInstance().addEventListener(AIEvent.ART_SELECTION_CHANGED, changeHandler); However, the error remains the same. Screenshot 2023-11-27 at 8.41.40...
开发者ID:andyjko,项目名称:feedlack,代码行数:17,代码来源:NameReferenceGraphConstruction.java 示例11: expectCanCast ▲点赞 2▼ importcom.google.javascript.rhino.jstype.JSType;//导入方法依赖的package包/类/** * Expect that the first type can be cast to the second type. The ...
It's not a real constant since the App function is executed from scratch on each state change. You can add the "debugger" statement to examine this logic in action. That's why useMemo is mandatory to preserve an original reference.