My main problem with it has been the external libraries I usually use, such as GSL (Gnu Scientific Library). Indeed, the software linked to it would perfectly work within the simulator but could not be used on the iPhone as the library is not compiled for ARM architecture. And I had no clue how to compile it for this platform.
I ended up looking for a simple algebra library (I just needed a few matrices and vectors manipulations), although I can't understand Apple not providing it... I also wanted to access elements easily , meaning I wanted a C++ library with operator overloading and not an Obj-C one.
I finally found the following library : C++ Grid from Kenneth Wilder
It is really straightforward to use. You just add the header which contains all the source in your project and that's it. The "gt_*" files are examples and they are very self-explaining and complete. Thanks Mr. Wilder for this lib !
However, I didn't test this library extensively and I guess the performances are not incredibely good, but it is certainly enough for simple things.
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