declare class does not name a type 出现这个编译错误主要有四个可能原因,现总结如下: 1.引用的类命名空间未包含 2.引用的类头文件未包含 3.包含了头文件,或者已经前置声明了,则说明所引用的类名写错。 4.循环引用头文件 前置声明要素: 1.前置声明需要注意以上提到的四点 2.尽可能的采用前置声明(做到只有包...
c++ class “xxxx“ does not name a type是怎么一回事_aFakeProgramer的博客-CSDN博客 1、尽可能采用前置声明 在C++中,A类中定义了B类的指针对象,需要前置声明B类,但是不一定需要引入B类的头文件。 使用前置声明时,cpp文件中include头文件的次序必须先包含前置声明的类定义头文件,再包含本类头文件。
报错:class does not name a type 来自:【已下线】C++ 经典项目实战 花椰菜 L76 2015-11-22 07:35 7回复 2129查看 我在网上查了发现有这样一个: class B{ .. private: A a; }; class A{ ... private: int a ; } 这样的话即使两个类分别在两个头文件A.h,B.h里并且B.h中#include了A.h,...
I have to make my class global (know it is not a good style, but I'd like to use my class in other functions too). After compiling I got following: error: ‘Test_Class’ does not name a type. Here is the code: main.cpp: #include"class_header.h"#include"header.h"Test_Class T...
buffer_manager.cpp:22:1: error: ‘m_array_type’ doesnotnameatypem_array_type buffer_manager::get_recieve_buffer() How do I get the buffer_manager.cpp to recognize the typem_array_type { return recv
In visual studio code works perfect but when i try code on mingw i took a lot of does not name a type error.I have to say i split my code hpp and cpp actually to much hpp and cpp.I included hpps on cpps but still not working.Here is my code. ...
member functions of a class template are not instantiated (i.e., written out by the compiler) until those member functions are used in the program. While most member functions require that B is complete, the class body alone does not (assuming the allocator type meets some basic requirements...
error: '[class name]' does not name a type 这个问题困扰了我好几个小时,真的很痛苦,所以记录一下。 我编译平台是Linux,编译命令如下: 代码语言:javascript 复制 g++-g-Wall-std=c++11-I/usr/local/mysql/include-I/usr/local/curl/include-o obj/tc_mysql.o-c tc_mysql.cpp...
struct SimpleType { int field; std::string name; SimpleType() : field(0), name("Hello World") { } } 从C ++ 11开始,语法得到了改进,您可以进行初始化field并name代替声明: // since C++11: struct SimpleType { int field = 0; // works now!
面向对象程序设计中最重要的一个概念是继承。继承允许我们依据另一个类来定义一个类,这使得创建和维护一个应用程序变得更容易。这样做,也达到了重用代码功能和提高执行效率的效果。