My problem is that I do not know how to properly change the fluent-bit configuration in my c++ application during program execution. I use two plugins: tail and lib. There is a need to change the readable files for the tail plugin at any time. The configuration yaml file looks […]
I created two identical programs (one in Rust and one in C++). They are single threaded, and there are no heap allocations. The rust version (cargo run --release) runs in 12 sec. The C++ version (compiled with MSVC /O2 Release or gcc) runs in 17 sec. Profile guided optimization didn't […]
I am responsible for securing an old Windows C++ project. It uses the MFC ODBC CDatabase class to interface with SQL-Server. All DB query and insert operations are done using parameterized stored-procedures, so it seems like good practice. But almost all the DB C++ code prepares statements in this form: […]
I'm a newbie in C++. I'm trying to write a function with string arguments in another .cpp file, and then call this function in main.cpp via an .hpp file. If I run with int, it works, but with string it does not, and I get a lot of errors. If […]
I'm developing my own toy UI framework in C++ using OpenGL. However, animations seem to be capped at 60Hz when dynamic refresh rate (DRR) is on, whereas I have a display with 120Hz. It seems like the framerate jumps up intermittently, e.g. when I'm moving the cursor. I'm wondering if […]
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 […]
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 […]
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 […]
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 […]
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