可能原因:自定义类中使用自定义槽和信号,但是没有在类中增加Q_OBJECT, 解决办法:在类中增加Q_OBJECT,删除编译产生的文件进行重新编译 具体原因分析如下 博主原文
undefinedreference to `vtableforC' 有人能看到我错过了什么吗? a. h #ifndefA_H_#defineA_H_#include<string>#include<iostream>usingnamespacestd;classA{protected:stringname;public: A(stringname);virtual~A();virtualvoidjustATest(){}voidjustBecause();virtualboolderivedTest(){} };#endif/* A_H...
class Base { public: virtual void f() = 0; }; 这是因为没有= 0,C++ 不知道它是纯虚函数,将其视为声明,期待稍后的定义。 在g++5.2.1 上测试。 从GCC 11.2.0 开始测试,错误消息更改为: undefined reference to `typeinfo for Base' 命令: g++ -ggdb3 -O0 -std=c++11 -Wall -Wextra -pedantic...
参考我的文件目录结构与cmake文件。 参考:https://stackoverflow.com/questions/14015792/why-am-i-getting-undefined-reference-to-vtable-errors-when-linking-this-qt
In function `curlx_tvnow': timeval.c:(.text+0xe9): undefined reference to `clock_gettime' 4) 下面这个是因为没有指定链接参数-ldl /usr/local/thirdparty/openssl/lib/libcrypto.a(dso_dlfcn.o): In function `dlfcn_globallookup': dso_dlfcn.c:(.text+0x4c): undefined reference to `dlopen'...
CMakeFiles/finddialog.dir/finddialog.cpp.o: Infunction`FindDialog::FindDialog(QWidget*)':finddialog.cpp:(.text+0x4e): undefined reference to `vtable for FindDialog'finddialog.cpp:(.text+0x60): undefined reference to`vtableforFindDialog'CMakeFiles/finddialog.dir/finddialog.cpp.o: In functio...
问Qt5未定义的对vtable CMake构建问题的引用EN其中 Qt5 是 RenderDoc 的界面库，autoconf 和 automake...
error: static assertion failed: No Q_OBJECT in the class with the signal # define Q_STATIC_ASSERT_X(Condition, Message) static_assert(bool(Condition), Message) ^ 1. 2. 3. error: undefined reference to `vtable for 1. 4.2 源码下载 这里直接给大家分享一下成品,用百度网盘给出,步骤博...
()': throw.cpp:4: undefined reference to `__cxa_allocate_exception' throw.cpp:4: undefined reference to `__cxa_throw' throw.o:(.rodata._ZTI9Exception[typeinfo for Exception]+0x0): undefined reference to `vtable for __cxxabiv1::__class_type_info' collect2: ld returned 1 exit ...
valid.cpp:(.text.startup+0x8c): undefined reference to `vtable for MyMainWindow' collect2: error: ld returned 1 exit status make: *** [double] Error 1 1. 2. 3. 4. 5. 6. 7. View Code 3,QIntValidator验证整数类,QDoubleValidator 验证浮点 ...