C++使用非常量静态成员(non-const static data member) 误区一:将非常量静态成员放到private里 非常量静态成员的错误使用方法 静态成员只跟类有关,是所有对象共有的属性,如果在类中初始化则意味着每个对象都初始化一次,这样就需要非静态成员了。非常量静态成员函数不可以在类中初始化,一定要在类外把类名作为命名空...
../../third_party/webrtc/pc/rtp_sender.h:187:32: error: non-const static data member must be initialized out of line 1. 2. 解决 解决方法: 将非const类型的静态变量拿到类外去初始化。 例子: // 错误定义方式 class Test { int a; const int b = 1; static int c = 2;//wrong } //...
int static length_ = 2; }; 会报错non-const static data member must be initialized out of line 解决方法: solu-1: 把此静态成员变量加设为const solu-1-eg. #include <iostream> class Cube { const int static length_ = 2; }; solu-2:把次静态成员变量放到类外定义 solu-2-eg. #include <i...
采纳回答:C++标准只允许static constant intergral或者枚举类型的数据在类内进行初始化。 引用:C++03 9.4.2 Static data members §4 If a static data member is of const integral or const enumeration type, its declaration in the class definition can specify a constant-initializer which shall be an integ...
111 How to initialize a "static const" data member in C++? 7 Non static const data members 5 Initialize non-const static member variables in C++, through a static member function 1 how to initialize a non-static const variable in class in C++? 1 C++ static const class members initial...
ttt.cc:6:24: error: non-static data member ‘value’ declared ‘constexpr’ constexpr int value=a+b; ^ ttt.cc: In function ‘int main()’: ttt.cc:14:30: error: invalid use of non-static data member ‘Add_<2, 3>::value’ ...
However, C++11 relaxes these restrictions, allowing in-class initialization of non-static members (§12.6.2/8): In a non-delegating constructor, if a given non-static data member or base class is not designated by a mem-initializer-id (including the case where there is no...
non-const static data member must be initialized out of line #ifndef SORTING_H #define SORTING_H #include //iostream #include //string #include "Array.h" namespace ds { template<class T> class Sorting { private: static int count =0; ...
(Simple) Report all non-const variables declared at namespace scope and global pointers/references to non-const data. clang-tidy however complains on this code snippet even though S::i is not declared at namespace scope. struct S { private: static int i; }; int S::i = 0; https://...