typedefstd::vector<int>intVector;intVectorvec ; typedefstd::function<void(Ref*)>ccMenuCallback typedefvoid (Ref::*SEL_SCHEDULE)(float); #defineschedule_selector(_SELECTOR)static_cast<cocos2d::SEL_SCHEDULE>(&_SELECTOR)
举个简单的例子，假如一个函数接受一个二维数组指针voidfunc(std::unique_ptr<std::vector<std::vector...
std::cout << "fn_half(50)=" << half_result << std::endl; int add_result = fn_add(2, 3); std::cout << "fn_add(2, 3)=" << add_result << std::endl; 1. 2. 3. 4. 5. 直接把std::function对象当作函数来调用即可,返回值以及参数都跟函数调用时一样的形式。 fn_half(50),...
static void sfoo(){} //注意:static修饰的是函数,不是返回值 } int (Base::*pa) = &Base::m_a; void (Base::*f1)() = &Base::foo; //注意,*在::后面 void (*f2)() = &Base::sfoo(); //注意static成员的指针不需指定作用域,可以向普通函数那样调用 std::function<> #include <iostrea...
void (Base::*f1)() = &Base::foo; //注意,*在::后面 void (*f2)()= &Base::sfoo(); //注意static成员的指针不需指定作用域,可以向普通函数那样调用 std::function<> #include <iostream>usingnamespacestd;classAA {public:intm_a =4;voidf1() ...
#include<iostream> using namespace std; typedef void (*Callback)(int, int); void myFunction(int a, int b) { cout << "Callback called with: " << a << ", " << b << endl; } int main() { // 使用函数指针别名 Callback cb = myFunction; cb(5, 10); return 0; } 2、typed...
using namespace std; class Clz{}; typedef void (Clz::*pot)(); class Sub : public Clz{ public: void test(){cout<<"test"<<endl;} pot pFun; void testCallback(){(this->*pFun)();} }; int main() { // your code goes here Sub* sub = new Sub();sub...
std::cout.flags(fl_hex); 別名也適用於函式指標,但比對等的 typedef 更容易閱讀: C++ 複製 // C++11 using func = void(*)(int); // C++03 equivalent: // typedef void (*func)(int); // func can be assigned to a function pointer value void actual_function(int arg) { /* some code...
问typedef的奇怪用法EN为数据类型取别名 1 #include<stdio.h> 2 3 typedef int i; //为int...
std::function<void( )> Create; std::function<void( int x, int Y)> Create; No you cannot. This code tries to define two variables with the same name. The fact that the types of those variables are instantiations of std::function template is irrelevant - this won't work for the same...