Init

.gitignore

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+.cache/
+a.out

README.org

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+* NixOS C++ Dev Template
+Having issues getting clangd to detect std header files despite clang++ and g++ having no issues. So this template/workaround solves this.
+
+I assume this is due to some wrapper script nonsense.
+
+As a workaround I use bear to generate the necessary paths/arguments to get clangd to pick these up.
+
+#+BEGIN_SRC
+bear -- clang++ main.cpp
+#+END_SRC
+
+In the generated compile_commands.json. There is a command for generating the main project but also a temporary object file.
+
+I assume this is more weird wrapper stuff (Bear does not support nixos clang wrappers)
+
+You need to move the cxx_isystem related flags as these are where the c++ stdlibs are kept. Also just rename them to isystem otherwise they dont work for whatever reason.

compile_commands.json

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+[
+  {
+    "arguments": [
+      "/run/current-system/sw/bin/clang++",
+      "-resource-dir",
+      "/nix/store/k2s6xfca52n25yb8b6f58i87kszp3m7g-clang-wrapper-21.1.2/resource-root",
+      "-idirafter",
+      "/nix/store/dqgfdpr53ldqmdfmginb1z6kzslkzsdl-glibc-2.40-66-dev/include",
+      "-isystem",
+      "/nix/store/68ndh04pl2hhhizsarvzwa9cnlp7zj3d-gcc-14.3.0/include/c++/14.3.0",
+      "-isystem",
+      "/nix/store/68ndh04pl2hhhizsarvzwa9cnlp7zj3d-gcc-14.3.0/include/c++/14.3.0/x86_64-unknown-linux-gnu",
+      "-c",
+      "main.cpp"
+    ],
+    "directory": "/home/cspark/Projects/CPP/hello_world",
+    "file": "/home/cspark/Projects/CPP/hello_world/main.cpp"
+  }
+]

main.cpp

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+#include <iostream>
+
+int main() {
+	std::cout << "Hello, world!" << std::endl;
+}

run.sh

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+#!/bin/sh
+
+rm a.out
+
+clang++ main.cpp
+
+./a.out