};intadd(inta,intb){returna + b; }intmain(){ D d1 =1.1; D d2 =1.2; std::cout <<add(d1, d2) << std::endl; } 这个例子很好理解,就是原本d1, d2是类对象,但是怎么就成了int呢?原因是operator int() const {return static_cast(d_); } 决定的,cpp官网那个例子对应的也就可以理解...
#include<cstdint>#include<iostream>intmain(){longlonga;int64_tb;std::cin >> a >> b;std::cout << std::max(a, b) << std::endl;return0;} int64_t在64位 Windows 下一般为long long int, 而在64位 Linux 下一般为long int, 所以这段代码在使用64位 Linux 下的 GCC 时不能通过编译,而...
1.如果你想这么用 #defineAAA666请替换为constint aaa=6662.#defineCAL_MAX(a,b)(a>b?a:b)改为 template<typenameT>inlineTcalMax(constT&a,constT&b){returna>b?a:b;}3.使用这种方式:classGame{private:enum{Num=5};int scores[Num];} 3:尽可能使用const 1.尽量把某些符合const特性的地方加上cons...
type isreference-compatiblewith the type ofexpression,static_castconverts the value ofglvalue, class prvalue, or array prvalue(until C++17)any lvalue(since C++17)expressionto xvalue referring to the same object as the expression, or to its base class subobject (depending ontarget-type).[1]...
{TC_CoroutineInfo*coro=static_cast<TC_CoroutineInfo*>(tf.data);// thisautofunc=coro->_init_func.coroFunc;void*args=coro->_init_func.args;transfer_tt=jump_fcontext(tf.fctx,NULL);//拿到自己的协程堆栈, 当前协程结束以后, 好跳转到maincoro->_scheduler->setMainCtx(t.fctx);//再跳转到具体...
int sum = 0; for (int i = 0; i < size; ++i) { sum += bosses.health; } return sum; } } 在Unity中的托管代码仍然在HelloWorld.cs文件中: void Start () { Debug.Log (string.Format ("Using a blittable argument: {0}",Increment (42))); ...
vector<string> x; y = static_cast<char*>(x); // 在类型与指针操作符之间留空格也可以, 但要保持一致. vector<char *> x; 域操作符std::cout; // Good: 命名空间访问,不要留空格 int MyClass::GetValue() const {} // Good: 对于成员函数定义,不要留空格 冒号...
(WORD width, WORD height);voidOnKeyPress(WPARAM key);// OpenUrlDialogInfo: Contains data passed to the "Open URL" dialog proc.structOpenUrlDialogInfo{WCHAR *pszURL; DWORD cch; };intWINAPIwWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR,intnCmdShow){ HeapSetInformation(NULL, HeapEnableTermination...
(); fc::crypto::private_key a_priv_key = fc::crypto::private_key::regenerate(fc::sha256(std::string(64, 'a'))); fc::crypto::private_key b_priv_key = fc::crypto::private_key::regenerate(fc::sha256(std::string(64, 'b'))); static uint64_t nonce = static_cast<uint64_t>...
Applications must not use this object if static_cast<bool>(*this) is false. */ operator bool() const noexcept; /* Queries the status of *this. The return value might be any of result_status::idle, result_status::value or result_status::exception. Throws concurrencpp::errors::empty_...