Sane defaults

.gitignore

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+build

.vscode/c_cpp_properties.json

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+{
+    "env": {
+        "defaultIncludePath": [
+            "${workspaceFolder}/src"
+        ],
+    },
+    "configurations": [
+        {
+            "name": "Luker",
+            "includePath": [
+                "${defaultIncludePath}"
+            ],
+            "intelliSenseMode": "linux-gcc-x64",
+            "compilerPath": "/usr/bin/g++",
+            "cStandard": "gnu17",
+            "cppStandard": "gnu++14"
+        }
+    ],
+    "version": 4
+}

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "(gdb) build and debug project",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/main",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}/build",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description":  "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "C/C++: g++ build workspace project"
+        }
+
+    ]
+}

.vscode/tasks.json

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+{
+    "tasks": [
+        {
+            "type": "shell",
+            "label": "C/C++: g++ build workspace project",
+            "command": "${workspaceFolder}/build.sh",
+            "options": {
+                "cwd": "${workspaceFolder}"
+            },
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": "$gcc",
+            "detail": "compiler: /usr/bin/g++"
+        }
+    ],
+    "version": "2.0.0"
+}

build.sh

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+#!/bin/bash
+
+mkdir -p build
+
+if [[ ! -e build/res ]]; then
+    ln -s ../res build/res
+fi
+
+g++ -g -fdiagnostics-color=always \
+    -Isrc \
+    src/*.cpp \
+    mybox.cpp \
+    -o build/main
+

mybox.code-workspace

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+{
+    "folders": [
+        {
+            "path": "."
+        }
+    ]
+}

mybox.cpp

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+
+
+#include <GLFW/glfw3.h>
+#include <stdio.h>
+
+#include <sub.h>
+
+int main(void) {
+    printf("hello world\n");
+    mysub();
+}

src/sub.cpp

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+#include <stdio.h>
+
+void mysub() {
+    printf("hello subroutine\n");
+}
+

src/sub.h

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+#ifndef H__LPR_SUB
+#define H__LPR_SUB
+
+void mysub();
+
+#endif