constexpr 已经使函数成为内联函数,我们不需要使用 static 来解决此问题,因此您也可以编写: #ifdef __cplusplus #define C_STATIC_INLINE #else #define C_STATIC_INLINE static inline #endif #define constexpr C_STATIC_INLINE uint64_t diff(uint64
这与类的属性无关。 问题可以简化为 S 问题是struct S {}; int main() { constexpr S s{}; []{ struct { constexpr auto operator()() { return s; } } val; }; } 在此处在sc++ language-lawyer constexpr 1个回答 0投票 return s; 在此范围内不可用。 clang是正确的 最新...
template <> class Blob<int> {typedef typename std::vector<int>::size_type size_type; Blob(); Blob(std::initializer_list<int> i1); int& operator[](size_type i);private:std::shared_ptr<std::vector<int>> data; void check(size_type i, const std::string &msg) const;}...
class Circle { public: constexpr Circle (int x, int y, int radius) : _x( x ), _y( y ), _radius( radius ) {} constexpr double getArea () { return _radius * _radius * 3.1415926; } private: int _x; int _y; int _radius; };const...
How to implement CListCtrl with CheckBoxes and CListBox with CheckBoxes inside it? how to include a header file which is placed in different folders? How to include library header files in subdirectory How to include unistd.h in visual c++ 6.0 How to initialize a static constexpr char array in...
const简单地说就是“不变”constexpr表示“不改变并且在编译时被设置”后者让程序快一点。我们不会注意到前面的声明,但是随着程序变得更大更复杂,它可能会更重要。(我不能用SSDL_CreateColor或SSDL_OpenSystemFont来做这件事,因为只有在运行时启动 SDL,它们才能工作。) 当初始值只是数字的时候我用constexpr(比如...
复制 class AppRun : public AndroidRun { public: AppRuntime(char*argBlockStart, const size_t argBlock) : AndroidRun(argBlockStart, argBlockLength) , m(NULL) { } void ClassNameAndArgs(const String8& className, int argc, char * const*argv) { mClassName = className for (int i = 0;...
P0426R1 constexpr For char_traits VS 2017 15.7 P0433R2 Integrating template deduction for class templates into the standard library P0739R0 Improving class template argument deduction integration into the standard library VS 2017 15.7 P0435R1 Overhauling common_type P0548R1 Tweaking ...
此外，临时对象不是const。++/--，前缀版本返回左值，后缀版本返回右值。左值引用（&）这个概念和右值...
Compiler error C7531main function cannot be declared as 'constexpr/consteval' Compiler error C7532'%$I': a specialization of variable template cannot have type '%$T' Compiler error C7533'%$S': template arguments not allowed in this context ...