Initial commit: Professional C++ Calculator Implementation

.github/workflows/ci.yml

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+name: C++ CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y cmake g++ libgtest-dev doxygen graphviz
+        cd /usr/src/gtest
+        sudo cmake CMakeLists.txt
+        sudo make
+        sudo cp lib/*.a /usr/lib
+
+    - name: Configure CMake
+      run: cmake -B build -DBUILD_TESTING=ON
+
+    - name: Build
+      run: cmake --build build
+
+    - name: Run tests
+      run: |
+        cd build
+        ctest --output-on-failure
+
+    - name: Generate documentation
+      run: doxygen Doxyfile
+
+    - name: Deploy documentation
+      uses: peaceiris/actions-gh-pages@v3
+      if: github.ref == 'refs/heads/main'
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: ./docs/html

.gitignore

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+# Build directories
+build/
+out/
+cmake-build-*/
+
+# IDE specific files
+.idea/
+.vscode/
+*.swp
+*.swo
+.vs/
+
+# Compiled Object files
+*.slo
+*.lo
+*.o
+*.obj
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Compiled Dynamic libraries
+*.so
+*.dylib
+*.dll
+
+# Compiled Static libraries
+*.lai
+*.la
+*.a
+*.lib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# CMake
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+install_manifest.txt
+
+# Testing
+Testing/
+test/Testing/
+
+# Code coverage
+*.gcda
+*.gcno
+coverage/
+
+# Documentation
+docs/html/
+docs/latex/
+
+# OS specific
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.10)
+project(Calculator VERSION 1.0.0 LANGUAGES CXX)
+
+# Specify C++ standard
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+# Add compiler warnings
+if(MSVC)
+    add_compile_options(/W4)
+else()
+    add_compile_options(-Wall -Wextra -Wpedantic)
+endif()
+
+# Create library target
+add_library(calculator_lib
+    src/calculator.cpp
+    src/calculator.h
+)
+
+target_include_directories(calculator_lib PUBLIC src)
+
+# Add executable
+add_executable(calculator src/main.cpp)
+target_link_libraries(calculator PRIVATE calculator_lib)
+
+# Install rules
+install(TARGETS calculator calculator_lib
+    RUNTIME DESTINATION bin
+    LIBRARY DESTINATION lib
+    ARCHIVE DESTINATION lib
+)
+
+install(FILES src/calculator.h
+    DESTINATION include
+)

Doxyfile

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+PROJECT_NAME           = "Modern C++ Calculator"
+PROJECT_NUMBER         = 1.0.0
+PROJECT_BRIEF         = "A professional-grade calculator implementation in modern C++"
+OUTPUT_DIRECTORY      = docs
+CREATE_SUBDIRS        = YES
+OPTIMIZE_OUTPUT_FOR_C = YES
+
+EXTRACT_ALL            = YES
+EXTRACT_PRIVATE        = YES
+EXTRACT_PACKAGE        = YES
+EXTRACT_STATIC         = YES
+EXTRACT_LOCAL_CLASSES  = YES
+
+GENERATE_HTML          = YES
+GENERATE_LATEX         = NO
+GENERATE_RTF           = NO
+GENERATE_MAN           = NO
+GENERATE_XML          = NO
+
+INPUT                  = src
+INPUT_ENCODING         = UTF-8
+FILE_PATTERNS          = *.cpp *.h
+RECURSIVE              = YES
+
+EXCLUDE_PATTERNS       = */build/* */test/*
+
+HAVE_DOT               = YES
+UML_LOOK              = YES
+CALL_GRAPH            = YES
+CALLER_GRAPH          = YES
+
+HTML_DYNAMIC_SECTIONS  = YES
+INTERACTIVE_SVG       = YES
+DOT_IMAGE_FORMAT      = svg
+HTML_COLORSTYLE_HUE   = 220
+HTML_COLORSTYLE_SAT   = 100
+HTML_COLORSTYLE_GAMMA = 80
+
+GENERATE_TREEVIEW      = YES
+TREEVIEW_WIDTH        = 250
+
+FORMULA_FONTSIZE      = 10
+
+USE_MDFILE_AS_MAINPAGE = README.md

LICENSE

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+MIT License
+
+Copyright (c) 2024 [Your Name]
+
+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.