You can’t. Apple can (using the ledger() system call, which is private), but you can’t. I’m not entirely sure whether launchd’s options work or not – certainly if it was still using the code visible in the last open source version (from 10.9.5), it wouldn’t, because it calls setrlimit(), but it’s been substantially rewritten since … Read more
This is a pure virtual method (=0) which is not supposed to change the data of the class (const). You should provide an implementation in one of the classes deriving from Weapon! See this: Difference between a virtual function and a pure virtual function You are expected to derive from the Weapon (can be considered … Read more
Several months ago I wrote an article called “Binary Compatibility of Shared Libraries Implemented in C++ on GNU/Linux Systems” [pdf]. While concepts are similar on Windows system, I’m sure they’re not exactly the same. But having read the article you can get a notion on what’s going on at C++ binary level that has anything … Read more
Currently there is no standard way of doing this in C++ although the information must be available somewhere. Otherwise, how could the program call the function? However, GCC provides an extension that allows us to retrieve the address of a virtual function: void (A::*mfp)() = &A::func; printf(“address: %p”, (void*)(b->*mfp)); …assuming the member function has the … Read more
No you can’t, constructors can’t be virtual. C++03 – 12.1 Constructors 4) A constructor shall not be virtual (10.3) or static (9.4). […] If you need something like this, you can look up the virtual constructor idiom here.
You can make Base be a class template that takes its function pointers from its template argument: extern “C” { struct CStruct { void (*funA)(int, char const*); int (*funB)(void); }; } template <typename T> class Base { public: CStruct myStruct; void FillPointers() { myStruct.funA = &T::myFunA; myStruct.funB = &T::myFunB; } Base() { FillPointers(); } }; … Read more
Because the syntax says 0, not expression or some other non-terminal matching nullptr. For all the time only 0 has worked. Even 0L would be ill-formed because it does not match the syntax. Edit Clang allows = 0x0, = 0b0 and = 00 (31.12.2013). That is incorrect and should be fixed in the compiler, of … Read more
You might want to consider using a tempfile.SpooledTemporaryFile which gives you the best of both worlds in the sense that it will create a temporary memory-based virtual file initially but will automatically switch to a physical disk-based file if the data held in memory exceeds a specified size. Another nice feature is that (when using … Read more
I am not sure what causes the problem in your case, but code below works for me without any issues (OS X, the same version of Conda as yours). Creation of the environment conda create -n test_env python=3.6.3 anaconda Some explanation of the documentation of conda create is not clear: -n test_env sets name of the … Read more
I note that there are two questions here. In the future you might consider posting two questions instead of combining two questions in one. When you combine questions like this often what happens is only the first one gets answered. The first question is “why are private virtual methods illegal in C#?” Here are the … Read more