wrapper

I'd like to use Pure Data as a prototyping tool for my own library. I found out that Pure Data patches are written in C, but my library is written in C++. So how can I use this code in pure data? Since I haven't used plain C, I'd like to know how I could write a C wrapper for C++ classes and how do instantiate my classes then? Or do I have to rewrite everything in C? You will need to write wrapper functions for every function which needs to be called. For example: // The C++ implementation class SomeObj { void func(int); }; extern "C" { SomeObj* newSomeObj() {return new SomeObj();} void

UPDATE: Because I needed something right away, I've created a simple shader wrapper that does the sort of thing I need. You can find it here: ShaderManager on GitHub . Note that it's designed for Objective-C / iOS, so may not be useful to everyone. If you have any suggestions for design improvements, please let me know! Original Problem: I'm new to using GLSL shaders. I'm familiar enough with the GLSL language and the OpenGL interface, but I'm having trouble designing a simple API through which to use shaders. OpenGL's C interface to interact with shaders seems cumbersome. I can't seem to find

I often need to deal with dynamically-allocated arrays in C++, and hence rely on Boost for scoped_array, shared_array, and the like. After reading through Stroustrup's C++11 FAQ and the C++11 Reference Wiki , I could not find a suitable replacement for these dynamic array wrappers that is provided by the C++11 standard. Is there something that I have overlooked, or do I have to continue relying on Boost? Thank you very much for your help! There is a specialization of unique_ptr , like unique_ptr<T[]> . #include <iostream> #include <memory> struct test { ~test() { std::cout << "test::dtor" <<

I'm writing a global error handling "module" for one of my applications. One of the features I want to have is to be able to easily wrap a function with a try{} catch{} block, so that all calls to that function will automatically have the error handling code that'll call my global logging method. (To avoid polluting the code everywhere with try/catch blocks). This is, however, slightly beyond my understanding of the low-level functioning of JavaScript, the .call and .apply methods, and the this keyword. I wrote this code, based on Prototype's Function.wrap method: Object.extend(Function

I have a T* addressing a buffer with len elements of type T . I need this data in the form of an std::vector<T> , for certain reasons. As far as I can tell, I cannot construct a vector which uses my buffer as its internal storage. Why is that? Notes: Please don't suggest I use iterators - I know that's usually the way around such issues. I don't mind that the vector having to copy data around if it's resized later. This question especially baffles me now that C++ has move semantics. If we can pull an object's storage from under its feet, why not be able to shove in our own? You can. You write

Does anyone know of a composite stream solution that will pre-load the first portion of a Stream in to a MemoryStream and keep the remainder as the original Stream which will be accessed when subsequent parts are required as necessary? I should imagine some wrapper class would implement the Stream interface and transparently juggle the access between the two streams depending upon which part is accessed. I'm hoping this is a solution someone may have solved before, maybe to optimize performance of reading a large FileStream. In my case I'm trying to get around a Windows Phone 8 bug reading

I know there is a solution with Jquery called unwrap, but I am writing "raw" JavaScript. I didn't find any solution without jQuery. I'd like to remove a div like so: <div><div id="mydiv">Important text here</div></div> After removal of "mydiv": <div>Important text here</div> What should I do, I'd like to know the theory. Thanks in advance. shouldn't this line work document.getElementById("mydiv").outerHTML = document.getElementById("mydiv").innerHTML See this JSBin Example (inspect the element) You need to use removeChild method for that: var divToRemove = document.getElementById('mydiv').;

Is there some template or something to implement iterface methods with accessing to wrapped member? For example, suppose I have public class MyClass implements List<Something> { private final List<Something> core; ... } and now I want to implement List<Something> by passing calls to wrapped like @Override public int size() { return core.size(); } and so on. There is. Use Source menu->Generate Delegate Methods... I'll say a bit more about how the "Generate Delegate Methods" refactoring works to create a forwarding class like you describe. You make a new class which optionally implements the

Just trying to understand auto-boxing, which I do apart from one thing: Short s = 250; Long l = 250; The assignment to Long l fails. This, I expect, is because you cannot widen then box (i.e. it tries to widen the int value 250 to a long and then box it which it cannot do). However, the assignment to Short s works. What is going on to make this fine? My assumption was it is still doing boxing and some kind of conversion. But if it's a case of it knowing 250 fits into a short , why does it not know that 250 will fit into a long ? axtavt Normally, you cannot apply multiple (implicit) conversions