From 165c3e3161b7a60e004df423b1b508eb515c30fe Mon Sep 17 00:00:00 2001
From: Chad Cotton <chad.cotton@outlook.com>
Date: Thu, 8 May 2025 10:15:21 -0500
Subject: [PATCH] Fix transpose.

---
 include/LinearLib/Matrix.hpp | 10 +++++-----
 tests/MatrixTests.cpp        | 11 +++++++----
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/include/LinearLib/Matrix.hpp b/include/LinearLib/Matrix.hpp
index 0c97cf7..0e43e64 100644
--- a/include/LinearLib/Matrix.hpp
+++ b/include/LinearLib/Matrix.hpp
@@ -124,12 +124,12 @@ namespace LinearLib {
             return res;
         }
 
-        Matrix transpose() const {
-            Matrix res;
+        Matrix<C, R, T> transpose() const {
+            Matrix<C, R, T> res;
 
-            for (std::size_t i = 0; i < R; i++) {
-                for (std::size_t j = 0; j < C; j++) {
-                    res.data[j][i] = data[i][j];
+            for (std::size_t i = 0; i < C; i++) {
+                for (std::size_t j = 0; j < R; j++) {
+                    res.data[i][j] = data[j][i];
                 }
             }
 
diff --git a/tests/MatrixTests.cpp b/tests/MatrixTests.cpp
index da6acf7..27316d4 100644
--- a/tests/MatrixTests.cpp
+++ b/tests/MatrixTests.cpp
@@ -99,15 +99,18 @@ TEST_CASE("Matrix operations", "[vector]") {
     }
 
     SECTION("Matrix transpose") {
-        const Matrix<2, 2, int> m {{1, 2},
-                                        {1, 2}};
+        const Matrix<3, 2, int> m {{1, 2},
+                                        {4, 2},
+                                        {5, 6}};
 
-        const Matrix<2, 2, int> result = m.transpose();
+        const Matrix<2, 3, int> result = m.transpose();
 
         REQUIRE(result[0][0] == 1);
-        REQUIRE(result[0][1] == 1);
+        REQUIRE(result[0][1] == 4);
+        REQUIRE(result[0][2] == 5);
         REQUIRE(result[1][0] == 2);
         REQUIRE(result[1][1] == 2);
+        REQUIRE(result[1][2] == 6);
     }
 
     SECTION("Matrix determinant") {