move

I have a directory (directory A) with 10,000 files in it. I want to move some of them to directory B and the others to directory C. I made a text file that contains the names of all the files I want to move to directory B and another one with the names of all the files that I want to move to directory C. How can I write a bash for loop to move these files to the new directories. Pseudocode: for file in textfileB: move file from directory A to directory B for file in textfileC: move file from directory A to directory C Sorry if this is asked somewhere else, but I've spent hours trying to learn

Why does std::runtime_error not provide a constructor accepting an std::string&& ? Looking at the constructors for std::string , it has a move constructor, but the noexcept specification is only there for C++14, not C++11. Was this a mistake, a deadline that was missed or am I missing something? explicit runtime_error(string&&); does not exist simply because it would not provide any optimization. As it turns out, a C++11-conforming runtime_error does not internally store a std::string . The reason is that the copy members of runtime_error must not throw exceptions. Otherwise the wrong

I have a base class and its subclass: class Base { public: virtual void hi() { cout << "hi" << endl; } }; class Derived : public Base { public: void hi() override { cout << "derived hi" << endl; } }; Trying to create a helper function that creates a unique pointer of a Derived object. 1) This one works: std::unique_ptr<Base> GetDerived() { return std::make_unique<Derived>(); } 2) But, this one fails to compile: std::unique_ptr<Base> GetDerived2() { auto a = std::make_unique<Derived>(); return a; } 3) std::move works: std::unique_ptr<Base> GetDerived3() { auto a = std::make_unique<Derived>();

so I got this working: -(void) ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *myTouch = [touches anyObject]; CGPoint location = [myTouch locationInView:[myTouch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; for( UITouch *touch in touches ) { CGPoint touchLocation = [touch locationInView: [touch view]]; CGPoint prevLocation = [touch previousLocationInView: [touch view]]; touchLocation = [[CCDirector sharedDirector] convertToGL: touchLocation]; prevLocation = [[CCDirector sharedDirector] convertToGL: prevLocation]; CGPoint diff = ccpSub

Imagine the following class that manages a resource (my question is only about the move assignment operator): struct A { std::size_t s; int* p; A(std::size_t s) : s(s), p(new int[s]){} ~A(){delete [] p;} A(A const& other) : s(other.s), p(new int[other.s]) {std::copy(other.p, other.p + s, this->p);} A(A&& other) : s(other.s), p(other.p) {other.s = 0; other.p = nullptr;} A& operator=(A const& other) {A temp = other; std::swap(*this, temp); return *this;} // Move assignment operator #1 A& operator=(A&& other) { std::swap(this->s, other.s); std::swap(this->p, other.p); return *this; } // Move

1.std::move https://www.zhihu.com/question/50652989 2.std::swap https://www.it-swarm.net/zh/c%2B%2B/%E6%A0%87%E5%87%86%E5%BA%93%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0std-swap%EF%BC%9F/1048414876/ 来源： https://www.cnblogs.com/Eagleeye1105/p/11796783.html