add all files

Author: forgotthepen

.github/workflows/test-linux.yml

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+name: Test (Linux)
+
+on:
+  push:
+    paths:
+      - '**.cpp'
+      - '**.hpp'
+      - '**.sh'
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Setup cmake
+        uses: jwlawson/actions-setup-cmake@v2
+      
+      - name: Ubuntu packages
+        shell: bash
+        run: |
+          sudo apt update -y
+          sudo apt install -y build-essential gcc g++
+
+      - name: Permissions
+        shell: bash
+        run: sudo chmod -R 777 .
+
+      - name: Build
+        shell: bash
+        run: ./build-linux.sh

.github/workflows/test-windows.yml

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+name: Test (Windows)
+
+on:
+  push:
+    paths:
+      - '**.cpp'
+      - '**.hpp'
+      - '**.bat'
+  workflow_dispatch:
+  pull_request:
+
+jobs:
+  build:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+      
+      - name: Setup cmake
+        uses: jwlawson/actions-setup-cmake@v2
+      
+      - name: Add msbuild to PATH
+        uses: microsoft/setup-msbuild@v2
+      
+      - name: Build
+        shell: cmd
+        run: build-win.bat

.gitignore

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+build*/
+.vscode/
+.vs/

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+
+set(project_name "observable-queue-test")
+
+project(${project_name})
+
+file(GLOB_RECURSE src_files
+    "test/*.cpp"
+)
+
+file(GLOB_RECURSE inc_files
+    "include/*.hpp"
+)
+
+add_executable(${project_name}
+    ${src_files}
+    ${inc_files}
+)
+
+target_include_directories(${project_name} PUBLIC
+    "include/"
+)
+
+set_target_properties(${project_name} PROPERTIES
+    LINKER_LANGUAGE CXX
+    CXX_STANDARD_REQUIRED ON
+    CXX_EXTENSIONS OFF
+)

LICENSE

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+MIT License
+
+Copyright (c) 2025 forgotthepen (https://github.com/forgotthepen/observable-queue)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# observable-queue
+
+A single header library implementing an observable queue.  
+
+## Features:
+* All subscribers to the queue will be notified once an element is pushed
+* Thread-safe
+* Supports both threaded and manual-polling modes
+* Compatible with C++11
+
+Example
+```c++
+#include "observable/queue.hpp"
+#include <iostream>
+#include <string>
+
+int main(int argc, char* *argv) {
+    // create an observable queue
+    obs::queue<std::string> queue{};
+
+    // subscribe to push events
+    queue += [](std::string &str) {
+        std::cout << "  >> You typed: " << str << '\n';
+    };
+
+    while (true) {
+        std::cout << "Type anything and press Enter: ";
+
+        std::string ss{};
+        std::getline(std::cin, ss);
+
+        if ("exit" == ss || "quit" == ss || "x" == ss || "q" == ss) {
+            break;
+        }
+
+        // add it to the queue
+        queue.emplace_back(ss);
+    }
+
+    std::cout << "\nDone... " << '\n';
+    return 0;
+}
+```

build-linux.sh

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+#! /bin/bash
+
+function build_cxx () {
+  rm -rf  "build-linux/cxx_$1"
+  cmake -S . -B "build-linux/cxx_$1" -DCMAKE_CXX_STANDARD=$1 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DCMAKE_CXX_EXTENSIONS=OFF || return 1
+  cmake --build "build-linux/cxx_$1" --clean-first -v -j || return 1
+  return 0
+}
+
+build_cxx 23 || exit 1
+build_cxx 20 || exit 1
+build_cxx 17 || exit 1
+build_cxx 14 || exit 1
+build_cxx 11 || exit 1
+
+exit 0

build-win.bat

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+@echo off
+pushd "%~dp0"
+setlocal
+
+call :build_cxx 23 || exit /b 1
+call :build_cxx 20 || exit /b 1
+call :build_cxx 17 || exit /b 1
+call :build_cxx 14 || exit /b 1
+call :build_cxx 11 || exit /b 1
+
+exit /b 0
+
+
+:build_cxx
+    rmdir /s /q "build-win\cxx_%~1"
+    cmake -S . -B "build-win/cxx_%~1" -DCMAKE_CXX_STANDARD=%~1 -DCMAKE_CXX_STANDARD_REQUIRED=ON -DCMAKE_CXX_EXTENSIONS=OFF || exit /b 1
+    cmake --build "build-win/cxx_%~1" --clean-first -v -j || exit /b 1
+exit /b 0