Add build scripts and update .gitignore

This commit introduces build scripts for both Windows (`build.bat`) and Linux/macOS (`build.sh`) to simplify the build process.

It also updates the `.gitignore` file to a more comprehensive version that includes common patterns for C++ projects and various IDEs.

.gitignore

@@ -39,3 +39,15 @@
 
 # debug information files
 *.dwo
+
+# Build directory
+/build/
+
+# IDE files
+.vscode/
+.idea/
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.vsproj

CMakeLists.txt

@@ -0,0 +1,24 @@
+# CMake minimum version
+cmake_minimum_required(VERSION 3.10)
+
+# Project name
+project(MyLibrary)
+
+# Add the library
+add_library(MyLibrary SHARED src/Library.cpp)
+
+# Define MY_LIB_EXPORT, so that __declspec(dllexport) is used
+target_compile_definitions(MyLibrary PRIVATE MY_LIB_EXPORT)
+
+# Public headers
+target_include_directories(MyLibrary PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+# Set the output directory for the library
+set_target_properties(MyLibrary PROPERTIES
+    ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib
+    LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib
+    RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin
+)
+
+# Add the examples subdirectory
+add_subdirectory(examples)

build.bat

@@ -0,0 +1,5 @@
+@echo off
+if not exist build mkdir build
+cd build
+cmake ..
+cmake --build .

build.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -e
+mkdir -p build
+cd build
+cmake ..
+cmake --build .

examples/CMakeLists.txt

@@ -0,0 +1,5 @@
+# Add the executable
+add_executable(Example main.cpp)
+
+# Link against the library
+target_link_libraries(Example MyLibrary)

examples/main.cpp

@@ -0,0 +1,8 @@
+#include <iostream>
+#include "Library.h"
+
+int main() {
+    int result = add(2, 3);
+    std::cout << "2 + 3 = " << result << std::endl;
+    return 0;
+}

src/Library.cpp

@@ -0,0 +1,5 @@
+#include "Library.h"
+
+int add(int a, int b) {
+    return a + b;
+}

src/Library.h

@@ -0,0 +1,15 @@
+#pragma once
+
+// Define MY_LIB_EXPORT for exporting symbols from the DLL
+#if defined(_WIN32)
+    #if defined(MY_LIB_EXPORT)
+        #define MY_LIB_API __declspec(dllexport)
+    #else
+        #define MY_LIB_API __declspec(dllimport)
+    #endif
+#else
+    #define MY_LIB_API
+#endif
+
+// A simple function to be exported
+MY_LIB_API int add(int a, int b);