swap

I have a button and when it's clicked, I want to replace the button with an image. How can I do this in JQuery? Is it possible to replace the background of the image as well? The button itself is within a large div, and I don't want to add another div around the button because it messes up a previous layout. If you want to replace the button element: $('the-button').bind('click', function () { $(this).replaceWith('<img src="/wherever.jpg"/>'); }); If you want to change the background image of the button: $('the-button').bind('click', function () { $(this).css('backgroundImage', 'url(\'

I guess you all heard of the 'swap problem'; SO is full of questions about it. The version of the swap without use of a third variable is often considered to be faster since, well, you have one variable less. I wanted to know what was going on behind the curtains and wrote the following two programs: int main () { int a = 9; int b = 5; int swap; swap = a; a = b; b = swap; return 0; } and the version without third variable: int main () { int a = 9; int b = 5; a ^= b; b ^= a; a ^= b; return 0; } I generated the assembly code using clang and got this for the first version (that uses a third

I'm trying to swap two elements using up and down arrows. A JSFiddle solution would be great! My HTML: <div class="item"> <div class="content">Some text</div> <div class="move"> <div class="move-down">down</div> </div> </div> <div class="item"> <div class="content">Some other text</div> <div class="move"> <div class="move-up">up</div> <div class="move-down">down</div> </div> </div> <div class="item"> <div class="content">Some text</div> <div class="move"> <div class="move-up">up</div> <div class="move-down">down</div> </div> </div> <div class="item"> <div class="content">Some other text</div>

Exactly as the title suggests I am looking for how to effectively swap two OpenCL buffers. My kernel uses two gloabl buffers, one as input and one as output. However, I invoke my kernel in a for loop with the same NDRange, each time setting the kernel arguments, enqueueing the kernel, and swapping the buffers because the previous output buffer will be the input buffer seed for the next iteration. What is the appropriate way here, to swap these two buffers? I imagine that copying the buffer back to the host to one of the already malloc'd arrays and copying it into the next input buffer using

I want to implement a Swap() method for my class (let's call it A) to make copy-and-swap operator=(). As far as I know, swap method should be implemented by swapping all members of the class, for example: class A { public: void swap(A& rhv) { std::swap(x, rhv.x); std::swap(y, rhv.y); std::swap(z, rhv.z); } private: int x,y,z; }; But what should I do if I have a const member? I can't call std::swap for it, so I can't code A::Swap(). EDIT: Actually my class is little bit more complicated. I want to Serialize and Deserialize it. Const member is a piece of data that won't change (its ID for

I'm looking for a std container like a std::list that can efficiently move an element to the front: a-b-c-d-e move "b" to front: a-c-d-e-b There is no such function in the std containers. Therefor, I think I must combine a remove and push_front function but has anyone can find a better idea? Thank in advance. If you don't have to maintain the order of the other elements, then the simplest solution is doubtlessly just to swap the element you want with the first element in the container. This will be efficient with all containers. Otherwise, std::list offers a splice operation which could be

As of N3797 the C++ standard requires swap functions of containers to not throw any exceptions unless specified otherwise [container.requirements.general] ( 23.2.1§10 ). Why are the swap member functions that are specified to not throw not declared noexcept ? The same question applies to the specialized non-member swap overloads. Lightness Races with Monica Further to what refp said , here's a post from Daniel Krügler on the std-discussion mailing list: The internal policy to declare a function as unconditional noexcept is explained in http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011