I just learned C++, and I'm trying to code a simple Hello World program on my 64-bit Windows 11 machine. I write the code with Visual Studio Code, but compile it with Command Prompt. When I try to compile it,…
I saw this meme on Instagram about some C++ code that should not output anything but does. The code is: #include <iostream> int main() { while (1) ; } void unreachable() { std::cout << "Hello World!" << std::endl; } I…
The following code compiles on g++, clang, and Visual Studio: #define HEX(hex_) 0x##hex_ int main() { return HEX(BadC0de); } as does this modification, using C++14 digit separators: return HEX(1'Bad'C0de); But this won't compile on g++ or clang (it works on…
I have been trying to get back into C++ after a break of 2 years. On the first day, things went fine. But when I came back the day after, none of my projects containing cout would compile. The error…
I'm trying to compile a C++ program "test.cpp" that includes a custom file "Cars.h" using VS Code. However it causes a build error even though I'm pretty sure I did everything right. My directory structure: Test ├── .vscode │ ├──…
#include <stddef.h> #include <array> struct S { static constexpr std::array<int,5> sca = {1,2,3,4,5}; static constexpr int foo(size_t i) { return sca[i]; } }; int main(int argc, char **argv) { S s; return s.foo(4); } Compiling this gives me a linker…
I've distilled my problem down to a (hopefully) very simple example. At a high level, I have a shared library which provides a class implementation, and a main executable which uses the library. In my example, the library is then…
I am trying to compile a program so that it starts on a different entry point. I am running WSL1 with Ubuntu 20.04.5, and GCC and G++ 9.4.0 I found that adding the flag -Wl,--entry=foo to the compiler will link…
I was trying to compile amber tools using cmake. I am using ubuntu Ubuntu 16.04.7 LTS with the default gcc version gcc-5 and g++5, and amber tool requires at least gcc-6. I have installed gcc-8 and g++8 and specified it…
This question has been asked and answered a bunch of times, but none of the answers seem to work for me. I've been trying to get clangd set up in nvim lsp. I used bear to generate compile_commands.json, but clangd…