Having the scenario of a C++ library where a function does some calculations as it receives a container normally (not always) across multiples calls, and where the function needs to retain an ...

I'm learning Rust and while doing research on static variables I came across this comment from 2018: Rust requires everything to be thread-safe (even if you're not using threads, the concept of a ...

I have a nested class that uses static vars to have class wide parameters and accumulators. If I do it as a standalone class it works. If I do a nested class and inherit the standalone class, it works....

I have searched about static variables in C#, but I am still not getting what its use is. Also, if I try to declare the variable inside the method it will not give me the permission to do this. Why? ...

If I have the following code: class Foo(object): bar = 1 def bah(self): print(bar) f = Foo() f.bah() It complains NameError: global name 'bar' is not defined How can I ...

I have a problem performing several scenarios one by one in unit testing. I'm testing a function, where static variables are used and they store states of variables after previous test scenarios. Is ...

I have a list of names which is static. I want to save it in a an static jaggedArray (to avoid multiple copies of same data). I want to write something like below code public static string[][] ...

Assuming that we need to define a singleton with global read access with thread safety, the canonical method is to use OnceLock: /// A synchronization primitive which can be written to only once. /// /...

I'm a student who is studying game engine structure. I've been managing shared resources through the Singleton Patterns Manager class while creating game engines. However, as the code got longer, the ...

How are unnamed namespaces superior to the static keyword?

When declaring static thread_local variable, then each thread has a copy of that variable. Imagine a thread then spins another thread, will this variable still be a copy in the nested thread?

Considering the following example: A class named ObjectFactory is defined to manage the creation of several classes. These managed classes should be registered with the factory so that we can create ...

Suppose I have the C++ code below template <int Id> struct Foo { static inline int x {}; }; int main() { using T0 = Foo<0>; using T1 = Foo<1>; ... using T999 = ...

Inside a function, I have a static variable which is a struct, and only one of its fields are initialized: void func() { static constexpr xcb_change_window_attributes_value_list_t root_mask { ....

I have an wildfly with 10 EARs inside /standalone/deployments. Each of these EARs has a lib called "my-lib.jar" on the /lib directory. This Lib has a class called ...