HELLO WORLD!!!

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.29.6)
+
+set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake")
+set(CMAKE_CXX_COMPILER clang++)
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+project(HelloWorld CXX)
+
+find_package(fmt CONFIG REQUIRED)
+
+add_executable(HelloWorld main.cpp)
+
+target_link_libraries(HelloWorld PRIVATE fmt::fmt)

build.sh

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+#!/bin/sh
+
+cmake --build build

cmake.sh

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+#!/bin/sh
+
+cmake -B build -S .

compile-commands.sh

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+#!/bin/sh
+
+cmake . -DCMAKE_EXPORT_COMPILE_COMMANDS=1

main.cpp

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+#include <fmt/core.h>
+
+int main() {
+  fmt::print("Hello world!\n");
+  return 0;
+}

shell.nix

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+{
+  pkgs ? import <nixpkgs> { },
+}:
+pkgs.mkShell {
+  # nativeBuildInputs is usually what you want -- tools you need to run
+  nativeBuildInputs = with pkgs.buildPackages; [
+    bear
+    gnumake
+    cmake
+    vcpkg
+    clang
+    clang-tools
+    pkg-config
+  ];
+
+  shellHook = ''
+    export VCPKG_ROOT="${pkgs.vcpkg.outPath}/share/vcpkg";
+    export CC="${pkgs.clang.outPath}/bin/clang";
+    export CXX="${pkgs.clang.outPath}/bin/clang++";
+  '';
+}

vcpkg.json

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+{
+  "dependencies": ["fmt"]
+}