Advertisements I am trying to implement a fixed size array of 32 bit integers, but the size is determined at runtime so it has to be heap allocated. Would it be more efficient to use a c++ std::vector and use vector.reserve() or should I use the conventional way of doing it using new int32_t[size]? Additionally,… Read More Best way to implement fixed size array in C++
Advertisements So, I learn variadic templates and usage of it. Now I made that code below. The question is does some other methode exist for getting type of "Params" without any arrays or inilialized_list? template<class Type, class… Params> void InsertInVector(std::vector<Type>& v, const Params&… params) { const auto variadic = {typeid(Params).name()…}; if (typeid(Type).name() != *variadic.begin()) {… Read More C++ variadic template: typeid of it, way to optimize
Advertisements I am trying to throw a message when the password is less than 6 characters, but I can’t catch the exception. final email = _email.text; final password = _password.text; try { final userCredential = await FirebaseAuth.instance .createUserWithEmailAndPassword( email: email, password: password ); print(userCredential); } on FirebaseAuthException catch (e) { print(e.runtimeType); print (‘Password should be… Read More Can't catch exception Firebase Realtime database
Advertisements I have a JSR223 Preprocessor code given below: String method = sampler.getMethod(); JMeter Test Plan given below: – JSR223 Pre Processor – HTTP Sampler – JSR223 Sampler / Any other sampler apart from HTTP As JSR223 PreProcessor will apply to all the Samplers in the hierarchy, it gives below error for all the Samplers… Read More JSR223 Pre Processor code should run for only HTTP Sampler
Advertisements As you can see, there is only Windows debug. I removed android and ios folders so it is not strange not to see them, but it’s strange that I can’t see Chrome. Why there is only Windows (desktop)? Any way to debug with Chrome (or Edge)? flutter doctor -v [√] Flutter (Channel stable, 2.10.5,… Read More Why I can't find Chrome as a debug target?
Advertisements I know that this error refers to undefined behavior (I think), but I’ve reread my code 20 times and I don’t see what the UB is!? I’m doing Leetcode 238. Product of Array Except Self and here’s my code (btw I don’t know if this solution is right): class Solution { public: vector<int> productExceptSelf(vector<int>&… Read More Runtime error: reference binding to null pointer of type 'int' (stl_vector.h) c++
Advertisements I am trying to train a neural network using Pytorch. I would like the loss function to be the MSE. I tried to use torch.nn.MSELoss, however I get an error that I do not understand. For example the following code gives me RuntimeError: Boolean value of Tensor with more than one value is ambiguous… Read More MSELoss from Pytorch
Advertisements I want to fetch movie data from omdbapi. I’m trying to embed typescript to determine the exact data I get from the endpoint (I’m new to typescript). The structure of the obtained data looks something like this, is it really necessary to list all the data individually in the interface if it is a… Read More Simplify the typescript interface for fetched data from api
Advertisements My question is why the following code is valid C++: #include <iostream> #include <tuple> #include <type_traits> std::tuple<const char *, const char *> tuple("Hello", "world"); std::integral_constant<std::size_t, 0> zero; std::integral_constant<std::size_t, 1> one; template<typename T> const char * lookup(T n) { // I would expect to have to write this: // return std::get<decltype(n)::value>(tuple); // But actually this… Read More Why does a non-constexpr std::integral_constant work as a template argument?
Advertisements I’m developing a software using C++ for Windows/Linux. I want to create a file (txt, json, license, you name it) at runtime, and save it somewhere. Is it possible in C++ to get the exact position of that file on disk, so that if I restart the app and read that address (or other),… Read More Is there a way to find exact location ( adress ) of file on disk?