I am interested in calculating the nth term of higher order Fibonacci sequence in C++, using matrix exponentiation, while allowing n to be reasonably large (in the range of hundreds). The sequences I have described are not Fibonacci sequence only…
I am running a simple benchmarking exercise of 2d array access of reading and writing. I have const int XDim = 1000; and const int YDim = 1000; and create a 1000 x 1000 matrix. In C-style, I initialize using…
Im currently stuck on some weird issues im not understanding. I have compiled my program for unix with gcc and now im trying to run it, what happens is that the program initializes a socket-io-service and crashes instantly because it…
How to do this in C++ using boost locale? In one of the questions I found an example Cross-platform iteration of Unicode string (counting Graphemes using ICU) #include <iostream> #include <string_view> #include <boost/locale.hpp> using namespace std::string_view_literals; int main() { boost::locale::generator…
I want to run process inside c++ program and be able to capture it's stdout, stderr during the process's lifetime (I figured out the stdin part). For that, I am using boost.process (1.81.0) on ubuntu 22.04 (but I want the…
I have a json file input.json thus: { "foo":{ "prefix":"abc", "body":[1,2,3] }, "bar":{ "prefix":"def", "body":[4,5,6] } } I would like to sort it by the outer object names, with "bar" coming before "foo" in alphabetical order like so: { "bar":{…
Given input.json: { "Identifier1": { "height": 120, "metrics": [ [ -3, -2, -1 ], [ 0, 1, 2, 3 ] ] }, "Identifier2": { "height": 130, "metrics": [ [ -3, -2, -1, -4 ], [ 0, 1 ], [ 5,…
I am trying to set up a basic Boost.Logging demo project, with Conan and CMake. I'm using Conan 1.53.0 and CMake 3.22.1, with gcc-11.3.0, on Ubuntu 22.04.1. First, I use Conan to bring in Boost 1.81, thus my conanfile.txt: [requires]…
I need to build a C++ program with CMake but it cannot find Boost. I'm getting the following error no matter what solutions I've found online for other people with this problem... -- Compiling with C++ standard: 17 CMake Error…
I am trying to setup a service for interrogating a distant database based on Boost Beast. Even if the context and the issues are totally different, I have found this question on SO: HTTP Delay from AWS Instance to Bitmex…