I have downloaded GMP 6.2.1 from the link supplied from the website to my macos Big Sur, unzipped it. I runned the configure script and make check make install then realized I should have added –enable-cxx to ./configure –enable-cxx. I did that and rerun make check. Error I’ve got is libtool: warning: ‘-no-install’ is ignored ..
Category : c++
Given a number of variables containing data a(1) – a(n), what is the best way to write this data to a file using std::fstream and what are the differences? if I have an open std::fstream to a file do I use std::fstream << a(0) <<"t" << << a(1) <<"t" << … << a(n) <<"n"; or ..
i’ve been trying to install the SDL extension libraries SDL_image, SDL_mixer, and SDL_ttf on mac with vscode. I already installed them with the homebrew package manager, but when i try to include them in my C++ projects, VS Code just gives me a wall of errors. Does anyone know how to properly include them? Source: ..
I have a C++ project which uses Open3D 3D data processing library. I have built the library from source according to the provided docs, using CMake GUI and Visual Studio 2019 in Windows 10 64. In my C++ project I link to the .lib files within the install folder that was built. So far the ..
Good morning! It’s already some days that I’m trying to configure the package manager, Conan, for my project for Rpi Pico. I’m using Mac and Clion. The two separate things are working correctly (I mean, if I follow the basic examples on respective projects). Have someone the correct receipt for use SDK pico with Conan? ..
I’m trying to define my own opencv module and build it out of the sources folder, and I meet some link error while building on window’s msvc: link error log on visual studio here is my file structure(on any arbitrary path): file structure I try to build this extra module(matlib.cpp) with opencv source in: F:/opencv-master ..
visual studio said i got no issue but, every time i tried to run my code it said i got assertion failure error, and it said vector subscript out of range, what should i do to fix this, i dont rly kno where did i do wrong #include <iostream> #include <ctime> #include <windows.h> #include <conio.h> ..
As I understood, std::lock locks section under its scope. But what if access to variable is performed in return statement? Example: // Looks safe… bool foo { std::lock_guard<decltype(myMutex)> tLock(myMutex); if (bar == 123) { return true; } else { return false; } } // Is it safe? bool foo { std::lock_guard<decltype(myMutex)> tLock(myMutex); return bar == ..
I just discovered that a constexpr method can return correctly the value of a class member that changes during execution. My question is, how is this possible if constexpr methods are supposed to be evaluated completely at compile time? The example below correctly outputs Value: 0 and then Value: 5. Even more, if I change ..
I am using boost::heap::priority to reorder object according to timestamps. It is for an ongoing process, there are always push and pop ( pop after object is 10ms in the heap) I can see pop is taking cpu, I think if there was a way to remove multiple elements from heap and only after to ..
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