From f3f0f90a51412d1684b43be6f2b5f93cb4154ee0 Mon Sep 17 00:00:00 2001
From: Arturs Artamonovs <arturs.artamonovs@protonmail.com>
Date: Fri, 25 Oct 2024 10:29:54 +0100
Subject: Initial empty project structure

---
 LA/Lib/Matrix.swift             | 73 +++++++++++++++++++++++++++++++++++++++++
 LA/Test/MatrixBenchmark.swift   |  7 ++++
 LA/Test/MatrixOperations.swift  |  8 +++++
 LA/Test/MatrixXT/MatrixXT.swift | 53 ++++++++++++++++++++++++++++++
 4 files changed, 141 insertions(+)
 create mode 100644 LA/Lib/Matrix.swift
 create mode 100644 LA/Test/MatrixBenchmark.swift
 create mode 100644 LA/Test/MatrixOperations.swift
 create mode 100644 LA/Test/MatrixXT/MatrixXT.swift

(limited to 'LA')

diff --git a/LA/Lib/Matrix.swift b/LA/Lib/Matrix.swift
new file mode 100644
index 0000000..8b3f538
--- /dev/null
+++ b/LA/Lib/Matrix.swift
@@ -0,0 +1,73 @@
+//
+//  Matrix.swift
+//  PrySDR
+//
+//  Created by Jacky Jack on 20/10/2024.
+//
+
+enum MatrixOperationError:Error {
+    case columnValue
+    case rowValue
+}
+
+/// Matrix Data Type
+class Matrix {
+    /// matrix row number
+    let rows: Int
+    /// matrix column number
+    let columns: Int
+    /// array where matrix is stored
+    var data: [Float]
+    
+    /// Create NxM matrix
+    /// - Parameters:
+    ///   - rows: number of rows in matrix
+    ///   - columns: number of columns in matrix
+    ///   - val: default value of matrix elements
+    init(rows: Int, columns: Int, val: Float) throws {
+        if (rows < 1) {
+            throw MatrixOperationError.columnValue
+        }
+        if (columns < 1) {
+            throw MatrixOperationError.rowValue
+        }
+        self.rows = rows
+        self.columns = columns
+        self.data = Array(repeating: 0.0, count: rows*columns)
+        //print(self.data)
+    }
+    
+    /// Set elements to value
+    /// - Parameters:
+    ///   - val: value to set
+    func set(_ val: Float) {
+        for idx in 0..<self.data.count {
+            self.data[idx] = val
+        }
+    }
+    /// Set all elements to 0
+    func zero() {
+        self.set(0.0)
+    }
+    
+    /// Set all elements to 1
+    func one() {
+        self.set(1.0)
+    }
+}
+
+/// Return 0 matrix
+/// - Parameters:
+///   - rows: number of rows in matrix
+///   - columns: number of columns in matrix
+func zero(_ rows: Int, _ columns: Int) -> Matrix {
+    return try! Matrix.init(rows: rows, columns: columns, val: 0.0)
+}
+
+/// Return identity matrix
+/// - Parameters:
+///   - rows: number of rows in matrix
+///   - columns: number of columns in matrix
+func one(_ rows: Int, _ columns: Int) -> Matrix {
+    return try! Matrix.init(rows: rows, columns: columns, val: 1.0)
+}
diff --git a/LA/Test/MatrixBenchmark.swift b/LA/Test/MatrixBenchmark.swift
new file mode 100644
index 0000000..7057b9e
--- /dev/null
+++ b/LA/Test/MatrixBenchmark.swift
@@ -0,0 +1,7 @@
+//
+//  MatrixBenchmark.swift
+//  PrySDR
+//
+//  Created by Jacky Jack on 21/10/2024.
+//
+
diff --git a/LA/Test/MatrixOperations.swift b/LA/Test/MatrixOperations.swift
new file mode 100644
index 0000000..a5ff995
--- /dev/null
+++ b/LA/Test/MatrixOperations.swift
@@ -0,0 +1,8 @@
+//
+//  MatrixOperations.swift
+//  PrySDR
+//
+//  Created by Jacky Jack on 21/10/2024.
+//
+
+
diff --git a/LA/Test/MatrixXT/MatrixXT.swift b/LA/Test/MatrixXT/MatrixXT.swift
new file mode 100644
index 0000000..55661be
--- /dev/null
+++ b/LA/Test/MatrixXT/MatrixXT.swift
@@ -0,0 +1,53 @@
+//
+//  MatrixXT.swift
+//  MatrixXT
+//
+//  Created by Jacky Jack on 21/10/2024.
+//
+
+import Testing
+
+struct MatrixXT {
+
+    @Test func example() async throws {
+        // Write your test here and use APIs like `#expect(...)` to check expected conditions.
+    }
+    
+    @Test func matrix_create_with_init() async throws {
+        do {
+            let _ = try Matrix(row:-1,column: -1,val:0.0)
+            Issue.record("Should fail")
+        } catch {
+            //should allway get here,
+        }
+        do {
+            let _ = try Matrix(row: 0, column: 0, val: 0.0)
+            Issue.record("Should fail")
+        } catch {
+            //should allways get here
+        }
+        do {
+            let _ = try Matrix(row: 1, column: 1, val: 0.0)
+        } catch {
+            Issue.record("Failed")
+        }
+        
+        do {
+            let _ = try Matrix(row: 2, column: 2, val: 0.0)
+        } catch {
+            Issue.record("Failed")
+        }
+        do {
+            let _ = try Matrix(row: 3, column: 3, val: 0.0)
+        } catch {
+            Issue.record("Failed")
+        }
+        do {
+            let _ = try Matrix(row:16, column: 16, val: 0.0)
+        } catch {
+            Issue.record("Failed")
+        }
+        
+}
+
+}
-- 
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