first commit

Author: zamderax

.github/workflows/swift.yml

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+name: Swift
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  test-macos:
+    name: Test on macOS
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        swift: ['6.0', '6.0.1', '6.0.2', '6.0.3']
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Select Xcode
+      run: sudo xcode-select -s /Applications/Xcode_16.2.app
+      
+    - name: Swift version
+      run: swift --version
+      
+    - name: Build
+      run: swift build -v
+      
+    - name: Run tests
+      run: swift test -v
+
+  test-ubuntu:
+    name: Test on Ubuntu
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift: ['6.0', '6.0.1', '6.0.2', '6.0.3']
+        ubuntu: ['22.04', '24.04']
+    container:
+      image: swift:${{ matrix.swift }}-${{ matrix.ubuntu }}
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Swift version
+      run: swift --version
+      
+    - name: Build
+      run: swift build -v
+      
+    - name: Run tests
+      run: swift test -v
+
+  lint:
+    name: Swift Format
+    runs-on: ubuntu-latest
+    container:
+      image: swift:latest
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Install swift-format
+      run: |
+        git clone https://github.com/swiftlang/swift-format.git
+        cd swift-format
+        swift build -c release
+        cp .build/release/swift-format /usr/local/bin/
+        
+    - name: Format check
+      run: |
+        swift-format lint -r Sources/ Tests/ || true

.gitignore

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+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## User settings
+xcuserdata/
+
+## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9)
+*.xcscmblueprint
+*.xccheckout
+
+## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4)
+build/
+DerivedData/
+*.moved-aside
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+
+## Obj-C/Swift specific
+*.hmap
+
+## App packaging
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+#
+# Add this line if you want to avoid checking in source code from Swift Package Manager dependencies.
+# Packages/
+# Package.pins
+# Package.resolved
+# *.xcodeproj
+#
+# Xcode automatically generates this directory with a .xcworkspacedata file and xcuserdata
+# hence it is not needed unless you have added a package configuration file to your project
+.swiftpm
+
+.build/
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
+#
+# Pods/
+#
+# Add this line if you want to avoid checking in source code from the Xcode workspace
+# *.xcworkspace
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build/
+
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+#
+# It is recommended to not store the screenshots in the git repo.
+# Instead, use fastlane to re-generate the screenshots whenever they are needed.
+# For more information about the recommended setup visit:
+# https://docs.fastlane.tools/best-practices/source-control/#source-control
+
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+#
+# After new code Injection tools there's a generated folder /iOSInjectionProject
+# https://github.com/johnno1962/injectionforxcode
+
+iOSInjectionProject/
+
+# macOS
+.DS_Store

Package.swift

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+// swift-tools-version: 6.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+import PackageDescription
+
+let package = Package(
+    name: "CrossPlatformSIMD",
+    platforms: [
+        .macOS(.v12),
+        .iOS(.v15),
+        .tvOS(.v15),
+        .watchOS(.v8),
+        .macCatalyst(.v15),
+        .visionOS(.v1)
+    ],
+    products: [
+        .library(
+            name: "CrossPlatformSIMD",
+            targets: ["CrossPlatformSIMD"]),
+    ],
+    targets: [
+        .target(
+            name: "CrossPlatformSIMD",
+            dependencies: [],
+            swiftSettings: [
+                .swiftLanguageMode(.v6)
+            ]
+        ),
+        .testTarget(
+            name: "CrossPlatformSIMDTests",
+            dependencies: ["CrossPlatformSIMD"],
+            swiftSettings: [
+                .swiftLanguageMode(.v6)
+            ]
+        ),
+    ]
+)

README.md

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+# CrossPlatformSIMD
+
+A Swift library that provides cross-platform SIMD (Single Instruction, Multiple Data) operations for high-performance vector computations.
+
+## Features
+
+- Cross-platform support (macOS, iOS, tvOS, watchOS, visionOS)
+- Optimized vector operations using Swift's built-in SIMD types
+- Support for Float and Double precision
+- Matrix multiplication
+- Swift 6.1 compatible
+
+## Installation
+
+Add this package to your Swift project using Swift Package Manager:
+
+```swift
+dependencies: [
+    .package(url: "path/to/CrossPlatformSIMD", from: "1.0.0")
+]
+```
+
+## Usage
+
+```swift
+import CrossPlatformSIMD
+
+let simd = SIMDOperations()
+
+// Vector addition
+let a: [Float] = [1.0, 2.0, 3.0, 4.0]
+let b: [Float] = [5.0, 6.0, 7.0, 8.0]
+let sum = simd.addVectors(a, b) // [6.0, 8.0, 10.0, 12.0]
+
+// Dot product
+let dot = simd.dotProduct(a, b) // 70.0
+
+// Vector multiplication
+let product = simd.multiplyVectors(a, b) // [5.0, 12.0, 21.0, 32.0]
+
+// Scale vector
+let scaled = simd.scaleVector(a, by: 2.0) // [2.0, 4.0, 6.0, 8.0]
+
+// Sum all elements
+let total = simd.sumVector(a) // 10.0
+
+// Matrix multiplication
+let matrixA = [[1.0, 2.0], [3.0, 4.0]]
+let matrixB = [[5.0, 6.0], [7.0, 8.0]]
+let matrixResult = simd.matrixMultiply(matrixA, matrixB)
+// [[19.0, 22.0], [43.0, 50.0]]
+```
+
+## Performance
+
+This library automatically uses SIMD instructions available on the target platform to accelerate vector operations. Operations are performed in chunks of 4 elements at a time for optimal performance.
+
+## Testing
+
+Run tests using Swift's built-in testing framework:
+
+```bash
+swift test
+```
+
+## Requirements
+
+- Swift 6.1+
+- Xcode 16.0+ (for development)
+- macOS 12.0+ / iOS 15.0+ / tvOS 15.0+ / watchOS 8.0+ / visionOS 1.0+