moc_mm.o: In function `Counter::metaObject() const':moc_joystick.o:moc_joystick.cpp:(.text+0x0): first defined here moc_mm.o:(.rodata+0x0): multiple definition of `Counter::staticMetaObject' 浏览2提问于2011-11-17得票数 3 回答已采纳 1回答 c++为编译添加了一个非cpp(例如txt文...
multiple definition of foo(int) first defined here 为什么是这样? 原文由 user2664110 发布,翻译遵循 CC BY-SA 4.0 许可协议 c++ 有用关注收藏 回复 阅读323 2 个回答 得票最新 社区维基1 发布于 2022-10-26 ✓ 已被采纳 include 所做的是从文件中复制所有内容(这是 <> 或"" 中的参数),所以当预...
程序无法生成,且会给很多Message: multiple definition of `check()' first defined here上面的check()是我写在functios.cpp里面的函数,为什么会有这样情况?请大家帮助我!我用的是devcpp () 飞翔的天地 吧主 12 请分别编译,链接时链接到一起 Kelophy 亮出16CM 1 回复:2楼谢谢,但还是没明白,是先...
(.bss.stream_httpd+0x0): multiple definition of `stream_httpd' sketch\CameraWebServer.ino.cpp.o:(.bss.stream_httpd+0x0): first defined here sketch\app_httpd.cpp.o: In function `startCameraServer()': app_httpd.cpp:(.text._Z17startCameraServerv+0x0): multiple definition of `start...
test3.cpp:(.text+0x72): multiple definition of `main' /tmp/ccaITY1Z.o:test1.cpp:(.text+0x72): first defined here collect2: ld returned 1 exit status make: *** [test1] Error 1 taoge@localhost Desktop> 显然不行啊, 怎么能对三个独立的cpp文件进行杂糅链接呢?
libpaho-mqttpp3.a(message.cpp.o):(.rodata+0x24): multiple definition of mqtt::message::DFLT_QOS' libexecutables_mqtt_pub_src_main.a(MqttClientTest.cpp.o):(.rodata._ZN4mqtt7message8DFLT_QOSE[_ZN4mqtt7message8DFLT_QOSE]+0x0): first defined here libpaho-mqttpp3.a(message.cpp.o)...
在头文件中定义的函数中似乎缺少一个static关键字。这是所有C/C++非模板化函数所必需的，以便将此函数...
A link step involving multiple groups of the first kind causes no difficulties. A linker must retain only one copy of the group and there will be one definition of Variable Name and one weak definition of Guard Variable Name. A link step involving pairs of groups of the second kind also ...
在头文件中定义的函数中似乎缺少一个static关键字。这是所有C/C++非模板化函数所必需的，以便将此函数的可见性限制在当前编译单元中，并避免与其他编译单元中包含的相同函数冲突。示例如下：
We have to force 76initialization right after the class is created, because by definition we 77have instances of it on the heap, and somebody might get a class object and 78start making virtual calls on it. We can end up going recursive during 79verification of java.lang.Class, but we ...