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Copy pathoperations.cpp
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275 lines (242 loc) · 8.57 KB
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Copy pathoperations.cpp
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275 lines (242 loc) · 8.57 KB
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#include "Matrix.hpp"
#include "Vector.hpp"
#include "Variable.hpp"
// ============================================================
// Helper functions!
// ============================================================
Matrix copy_contents_mat (const Matrix &l) {
Matrix new_vec = Matrix(l.width, l.height);
return new_vec;
}
// ============================================================
// ASSIGN/ACCESS
// ============================================================
Vector& Matrix::operator[] (int x) {
return this->array[x];
}
void Matrix::operator= (initializer_list<initializer_list<double>> ar) {
// find height / width
int ar_height = ar.size();
int ar_width = ar.begin()->size();
for (int i = 1; i < ar_height; i++) {
if (ar_width != (ar.begin()+i)->size()) {
throw invalid_argument("array invalid");
}
}
// check height / width
if (this->height != ar_height) throw invalid_argument("height invalid. Expected " + to_string(this->height) + " got: " + to_string(ar_height));
if (this->width != ar_width) throw invalid_argument("width invalid. Expected " + to_string(this->width) + " got: " + to_string(ar_width));
// assign
for (int i = 0; i < ar_height; i++) {
this->array[i] = *(ar.begin() + i);
}
}
void Matrix::operator= (initializer_list<initializer_list<Variable>> ar) {
// find height / width
int ar_height = ar.size();
int ar_width = ar.begin()->size();
for (int i = 1; i < ar_height; i++) {
if (ar_width != (ar.begin()+i)->size()) {
throw invalid_argument("array invalid");
}
}
// check height / width
if (this->height != ar_height) throw invalid_argument("height invalid");
if (this->width != ar_width) throw invalid_argument("width invalid");
// assign
for (int i = 0; i < ar_height; i++) {
this->array[i] = *(ar.begin() + i);
}
}
// ============================================================
// ADDITION
// ============================================================
Matrix operator+ (const Matrix &a, const Matrix &b) {
// see if width / height is feasible
if (a.width != b.width) throw invalid_argument("Width invalid");
if (a.height != b.height) throw invalid_argument("Height invalid");
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
return_mat.array[i].array[x] = a.array[i].array[x] + b.array[i].array[x];
}
}
// return
return return_mat;
}
Matrix operator+ (const Matrix &a, const double &b) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = a.array[i].array[x] + (*new_var);
}
}
// return
return return_mat;
}
Matrix operator+ (const double &b, const Matrix &a) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = *(new_var) + a.array[i].array[x];
}
}
// return
return return_mat;
}
// ============================================================
// SUBTRACTION
// ============================================================
Matrix operator- (const Matrix &a, const Matrix &b) {
// see if width / height is feasible
if (a.width != b.width) throw invalid_argument("Width invalid");
if (a.height != b.height) throw invalid_argument("Height invalid");
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
return_mat.array[i].array[x] = a.array[i].array[x] - b.array[i].array[x];
}
}
// return
return return_mat;
}
Matrix operator- (const Matrix &a, const double &b) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = a.array[i].array[x] - *new_var;
}
}
// return
return return_mat;
}
Matrix operator- (const double &b, const Matrix &a) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = *new_var - a.array[i].array[x];
}
}
// return
return return_mat;
}
// ============================================================
// MULTIPLICATION
// ============================================================
Matrix operator* (const Matrix &a, const Matrix &b) {
// see if width / height is feasible
if (a.width != b.width) throw invalid_argument("Width invalid");
if (a.height != b.height) throw invalid_argument("Height invalid");
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
return_mat.array[i].array[x] = a.array[i].array[x] * b.array[i].array[x];
}
}
// return
return return_mat;
}
Matrix operator* (const Matrix &a, const double &b) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = a.array[i].array[x] * *new_var;
}
}
// return
return return_mat;
}
Matrix operator* (const double &b, const Matrix &a) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = *new_var * a.array[i].array[x];
}
}
// return
return return_mat;
}
// ============================================================
// DIVISION
// ============================================================
Matrix operator/ (const Matrix &a, const Matrix &b) {
// see if width / height is feasible
if (a.width != b.width) throw invalid_argument("Width invalid");
if (a.height != b.height) throw invalid_argument("Height invalid");
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
return_mat.array[i].array[x] = a.array[i].array[x] / b.array[i].array[x];
}
}
// return
return return_mat;
}
Matrix operator/ (const Matrix &a, const double &b) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = a.array[i].array[x] / *(new_var);
}
}
// return
return return_mat;
}
Matrix operator/ (const double &b, const Matrix &a) {
// create matrix
Matrix return_mat = Matrix(a.height, a.width);
// operations
for (int i = 0; i < a.height; i++) {
for (int x = 0; x < a.width; x++) {
Variable *new_var = new Variable();
new_var->operation = op::argument;
new_var->value = b;
return_mat.array[i].array[x] = *(new_var) / a.array[i].array[x];
}
}
// return
return return_mat;
}
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