From 51ab7843b70d5833807856fb2228e60a5208e91f Mon Sep 17 00:00:00 2001
From: "dario.genga" <dario.genga@etu.hesge.ch>
Date: Tue, 23 Nov 2021 00:12:23 +0100
Subject: [PATCH] Add matrix transpose
---
main.c | 11 ++++++++++-
matrix.c | 16 ++++++++++++++++
2 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/main.c b/main.c
index e83ba65..a86789a 100644
--- a/main.c
+++ b/main.c
@@ -11,24 +11,33 @@
#include "matrix.h"
int main() {
- matrix mat, cloned;
+ matrix mat, cloned, transposed;
int32_t m = 3;
int32_t n = 4;
int32_t s = m * n;
int32_t val = 0;
int32_t data[12] = { 2, 1, -1, -2, 3, 1, 1, 3, 1, 4, -1, -1 };
+ // Init
matrix_init(&mat, m, n, val);
printf("Empty matrix %dx%d\n", m, n);
matrix_print(mat);
+ // Init from array
matrix_init_from_array(&mat, m, n, data, s);
printf("Matrix %dx%d from array\n", m, n);
matrix_print(mat);
+ // Clone
matrix_clone(&cloned, mat);
printf("Cloned matrix :\n");
matrix_print(cloned);
+ // Transpose
+ matrix_transpose(&transposed, mat);
+ printf("Transposed matrix :\n");
+ matrix_print(transposed);
// Free the memory
matrix_destroy(&mat);
matrix_destroy(&cloned);
+ matrix_destroy(&transposed);
+
return EXIT_SUCCESS;
}
diff --git a/matrix.c b/matrix.c
index af26f76..fb71f56 100644
--- a/matrix.c
+++ b/matrix.c
@@ -106,3 +106,19 @@ error_code matrix_destroy(matrix *mat) {
return ok;
}
+
+error_code matrix_transpose(matrix *transposed, const matrix mat) {
+ error_code code = matrix_alloc(transposed, mat.n, mat.m);
+ if (code == err) {
+ return err;
+ }
+
+ for (int i = 0; i < mat.m; i++) {
+ for (int k = 0; k < mat.n; k++) {
+ transposed->data[k][i] = mat.data[i][k];
+ }
+ }
+
+ return ok;
+}
+
--
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