typedefstd::unique_ptr<std::unordered_map<std::string,std::string>> UPtrMapSS; C++11中,提供了别名声明的语法来取代typedef: using UPtrMapSS =std::unique_ptr<std::unordered_map<std::string,std::string>>; 既然这两种语法都可以代表对一种类型的简写,那为什么一定要用using而不是typedef呢? 理由之一...
typedefstd::unique_ptr<std::unordered_map<std::string, std::string>> UPtrMapSS; 而C++11中:usingUPtrMapSS = std::unique_ptr<std::unordered_map<std::string, std::string>>; 或许从这个例子中,我们是看不出来明显的好处的(而于我来说,以一个第三者的角度,这个例子也难以说服我一定要用C++11的usi...
usingUPtrMapSS=std::unique_ptr<std::unordered_map<std::string,std::string>>; 1. 2. 3. 4. 或许从这个例子中,我们是看不出来明显的好处的(而于我来说,以一个第三者的角度,这个例子也难以说服我一定要用C++11的using)。 再来看下: typedefvoid(*FP) (int,conststd::string&); 1. 若不是特别熟...
Usingstd::unique_ptrfor member variables brings similar benefits, but one point I really like is how it makes the class definition more self-documenting. Consider this class: classCar{/*...*/World*mWorld;Engine*mEngine;} DoesCarownsmWorld,mEngine, both, none? We can guess, but we can't...
Trouble using std::unique_ptrFeb 21, 2014 at 3:53pm ragecoder (25) So being the humble human I am during my never ending endeavor to learn I found this example code in my book, promptly attempting to compile and run it I found that std::unique_ptr is in fact (according to my ...
Luckily, we can still get the benefit of RAII by usingstd::unique_ptrby trading off some cleanliness. Butstd::unique_ptrtakes a deletertype. No problem, we havedecltype()to the rescue! C++ #include<memory>intmain() {autoData =std::unique_ptr<double,decltype(free)*>{reinterpret_cast<dou...
3 对于C++而言: std::auto_ptr<double> ptr(new double); 4 对于C++11新的智能指针: std::unique_ptr<double> ps(new double); 5 通过下面几组数据做些一点 6 */ 7 #include<iostream> 8 #include<memory> 9 #include<windows.h> 10 using namespace std; ...
With unique_ptr, the code might look something like this: c++ // Allocate string buffer using std::unique_ptrstd::unique_ptr<wchar_t[] > buffer(newwchar_t[bufferLength]); Or, using std::make_unique (available since C++14 and implemented in Visual Studio 2013): ...
inline HRESULT sink(std::unique_ptr<Widget> widget) { #if DEBUG if (!widget) return E_POINTER; #endif m_widget = std::move(widget); } Let’s talk about inline functions. Consider: Copy void undef(); inline void f() { undef(); ...
//Building the FlexDelegate instance auto delegate = tflite::FlexDelegate::Create(); //Building the interpreter std::unique_ptr<tflite::Interpreter> interpreter; builder(&interpreter); // Modifying the graph with the FlexDelegate instance if(delegate){ interpreter->ModifyGraphWithDelegate(std::mov...