I am uncertain if passing a __restrict__ pointer to another function is always breaking the rules of restrict aliasing (assuming that other function reads or writes to it) or if it is more subtle I am aware that it is not standard C++ and instead an extension of C99 that […]
want to add Firebase to an Axmol Game engine ios project (https://github.com/axmolengine/axmol) . I used to add the xcframeworks with CMake, but the firebase-ios-sdk does not have the xcframeworks. When I try to add firebase-ios-sdk with the Swift Package Manager, Xcode blocks with the message 'preparing to validate' with no […]
I'm writing a function in C++ that has to return more than one value, and I know that I can't. So I thought to pass the function two pointers to the files I want to open. This is the code and then I'll explain my problem: void openSourceOutputFiles(string sourceFilename, string […]
The goal of AsyncQuery is to take new wstring messages as fast as possible, and to "consume" them by sending them to a managed function (which can be slow, because this happens on the UI thread). I have the following implementation, which blocks (tests do not finish), and I do […]
I have have found the following code in my company's codebase. The logic behind is to free the config singleton when nobody is using it, as some users have been found to inflate its size, which has been measured to cause memory usage issues. While the obvious solution would be […]
Getting undefined reference to `_imp__Py_Initialize' error in Qt C++. I am following the steps given here(Embed / Include Python.h into C++ [Full Guide] (Python 3.9) (Windows) (Qt 5.15)) to integrate Python interpreter to Qt C++. But when I try building them I am getting the error. I have included the […]
Why don't I see implicitly generated constructors/destructor/ etc in the symbol table for my C++ code? E.g #include class Foo { public: Foo (int N) : values {new int[N]}{ for (int i = 0; i < N; i++) { values[i]=2*i; } }; private: int *values; }; int main() { Foo […]
I have defined a type just like struct Mytype{ double a; double b; bool isfinite() { } }; how could i can use allFinite in Eigen like Eigen::Array Array; array.allFinite(); i try to define like struct Mytype{ bool isfinite() { return isfinite(a)&&isfinite(b); } }; but it doesnot work,what should i […]
How can I get the same random results in IT++ and Matlab? For example, the default random generator algorithm in Matlab is "twister" which is "Mersenne Twister" with the keyword mt19937ar. So, when I write rng(0, "twister") in Matlab, the results are always the same (seed=0.) But, I don't know […]
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