Yes, C++ was originally designed so that any C library can be easily used in C++. Of course this is slightly less true (in particular, if a C library happens to use some C++ keyword like try or dynamic_cast, it won’t work; also, if a callback coded in C++ passed to a C library is … Read more
I’ve done something like this once. The main source of problems was that C++ is more strict about types, as you suspected. You’ll have to add casts where void* are mixed with pointers of other types. Like allocating memory: Foo *foo; foo = malloc(sizeof(*foo)); The above is typical C code, but it’ll need a cast … Read more
I had a similar requirement on my system and this was my solution: In MATLAB there is a function called perl.m, which allows you to call perl scripts from MATLAB. Depending on which version you are using it will be located somewhere like C:\Program Files\MATLAB\R2008a\toolbox\matlab\general\perl.m Create a copy called python.m, a quick search and replace … Read more
Computations often need to move data from one site to another, and don’t have any shared memory. So one computation sends a message containing the data to the other. How should that data, if it is arbitrarily complicated, be sent in a message? Marshalling is the process of converting a data field, or an entire … Read more
Having multiple languages in one project is actually quite common, however the principles behind are not always simple. In the simple case, different languages are compiled to the same code. For example, C and C++ code typically is compiled into machine assembler or C# and VB.Net is compiled into IL (the language understood by the … Read more
You cannot write a Cocoa application entirely in C++. Cocoa relies heavily on the late binding capabilities of Objective-C for many of its core technologies such as Key-Value Bindings, delegates (Cocoa style), and the target-action pattern. The late binding requirements make it very difficult to implement the Cocoa API in a compile-time bound, typed language … Read more
There are a couple of ways. My preferred way is to attach a function to the ajaxStart/Stop events on the element itself. $(‘#loadingDiv’) .hide() // Hide it initially .ajaxStart(function() { $(this).show(); }) .ajaxStop(function() { $(this).hide(); }) ; The ajaxStart/Stop functions will fire whenever you do any Ajax calls. Update: As of jQuery 1.8, the documentation … Read more