Added passing a function as parameter

Reviewed-on: leto/LeMA#1

.gitignore

@@ -1,2 +1,4 @@
 build/*
 .vscode/*
+main.cpp
+main.exe

main.cpp

@@ -1,12 +0,0 @@
-#include "matrices.h"
-
-int main() {
-    Matrix a(3, 3);
-    Matrix b(3, 1); // Let's multiply by a vector
-
-    Matrix result = a * &b;
-
-    result.Print("A x B"); // Result is a 3 by 1 vector
-
-    return 0;
-}

matrices.h

@@ -16,7 +16,7 @@ class Matrix{
 
         inline Matrix Swap(const Matrix*);
 
-        inline void Multiply(float); // TODO : Make this return a Matrix
+        inline Matrix Multiply(float);
         inline Matrix Multiply(const Matrix*);
 
         inline void Hadamard(const Matrix*);
@@ -27,6 +27,8 @@ class Matrix{
         inline Matrix Substract(float);
         inline Matrix Substract(const Matrix*);
 
+        inline Matrix Function(float (*f)(float));
+
         inline void Print(std::string_view);
 
         inline Matrix Transpose();
@@ -36,7 +38,10 @@ class Matrix{
         inline Matrix operator+(const Matrix*);
         inline Matrix operator-(const Matrix*);
         inline Matrix operator*(const Matrix*);
-        // TODO : Add float parameters for these
+
+        inline Matrix operator+(float);
+        inline Matrix operator-(float);
+        inline Matrix operator*(float);
 
         // Constructors
         inline Matrix(int, int);
@@ -59,6 +64,29 @@ Matrix Matrix::operator*(const Matrix* other){
     return this->Multiply(other);
 }
 
+Matrix Matrix::operator+(float value){
+    return this->Add(value);
+}
+
+Matrix Matrix::operator-(float value){
+    return this->Substract(value);
+}
+
+Matrix Matrix::operator*(float value){
+    return this->Multiply(value);
+}
+
+Matrix Matrix::Function(float (*f)(float)){
+    Matrix result = this;
+    for(int m = 0; m < result.values.size(); m++){
+        for(int n = 0; n < result.values[m].size(); n++){
+            // Execute function on every value
+            result.values[m][n] = f(result.values[m][n]);
+        }
+    }
+    return result;
+}
+
 // Constructs a zero matrix
 Matrix::Matrix(int rows, int cols){
     for(int m = 0; m < rows; m++){
@@ -180,12 +208,14 @@ Matrix Matrix::Substract(float value){
 }
 
 // Multiply every matrix case by a given factor
-void Matrix::Multiply(float value){
-    for(int m = 0; m < this->values.size(); m++){
-        for(int n = 0; n < this->values[m].size(); n++){
-            this->values[m][n] *= value;
+Matrix Matrix::Multiply(float value){
+    Matrix result = this;
+    for(int m = 0; m < result.values.size(); m++){
+        for(int n = 0; n < result.values[m].size(); n++){
+            result.values[m][n] *= value;
         }
     }
+    return result;
 }
 
 // Set a matrix to a given value