Compare commits
9 Commits
648cbb1777
...
dd2a621f11
| Author | SHA1 | Date | |
|---|---|---|---|
| dd2a621f11 | |||
|
|
5776f52662 | ||
|
|
18c917193c | ||
|
|
72dab86dd9 | ||
|
|
9d7ec2dc0d | ||
|
|
78579ded18 | ||
|
|
5f52f6eef2 | ||
|
|
6594829227 | ||
|
|
80481f037d |
157
matrix.c
157
matrix.c
@ -1,5 +1,6 @@
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include "matrix.h"
|
||||
|
||||
// TODO Matrix-Funktionen implementieren
|
||||
@ -7,6 +8,13 @@
|
||||
Matrix createMatrix(unsigned int rows, unsigned int cols)
|
||||
{
|
||||
Matrix matrix;
|
||||
Matrix empty = {0, 0, NULL};
|
||||
|
||||
if(rows == 0 || cols == 0)
|
||||
{
|
||||
//print("Fehler: Dimensionen muessen >= 1 sein!");
|
||||
return empty;
|
||||
}
|
||||
|
||||
matrix.rows = rows;
|
||||
matrix.cols = cols;
|
||||
@ -14,7 +22,7 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
|
||||
|
||||
if(matrix.buffer == NULL)
|
||||
{
|
||||
printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
|
||||
//printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
|
||||
matrix.rows = 0;
|
||||
matrix.cols = 0;
|
||||
}
|
||||
@ -24,7 +32,7 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
|
||||
|
||||
void clearMatrix(Matrix *matrix)
|
||||
{
|
||||
free(matrix.buffer);
|
||||
free(matrix->buffer);
|
||||
|
||||
matrix->buffer = NULL;
|
||||
matrix->rows = 0;
|
||||
@ -33,32 +41,32 @@ void clearMatrix(Matrix *matrix)
|
||||
|
||||
void setMatrixAt(MatrixType value, Matrix *matrix, unsigned int rowIdx, unsigned int colIdx)
|
||||
{
|
||||
if(matrix->buffer == NULL)
|
||||
if(matrix.buffer == NULL)
|
||||
{
|
||||
printf("Fehler beim Setzen! Matrix nicht initialisiert");
|
||||
//printf("Fehler beim Setzen! Matrix nicht initialisiert");
|
||||
return;
|
||||
}
|
||||
|
||||
if(rowIdx >= matrix->rows || colIdx >= matrix->cols)
|
||||
if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
|
||||
{
|
||||
printf("Ungueltige Indizes beim Setzen!\n");
|
||||
//printf("Ungueltige Indizes beim Setzen!\n");
|
||||
return;
|
||||
}
|
||||
|
||||
matrix->buffer[rowIdx * matrix->cols + colIdx] = value;
|
||||
matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
|
||||
}
|
||||
|
||||
MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
|
||||
{
|
||||
if(matrix.buffer == NULL)
|
||||
{
|
||||
printf("Fehler beim Lesen! Matrix nicht initialisiert");
|
||||
//printf("Fehler beim Lesen! Matrix nicht initialisiert");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
|
||||
{
|
||||
printf("Ungueltige Indizes beim Lesen!\n");
|
||||
//printf("Ungueltige Indizes beim Lesen!\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -67,31 +75,134 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
|
||||
|
||||
Matrix add(const Matrix matrix1, const Matrix matrix2)
|
||||
{
|
||||
if((matrix1.rows != matrix2.rows) || (matrix1.cols != matrix2.cols))
|
||||
{
|
||||
printf("Fehler bei Addition: Matrix Dimensionen passen nicht ueberein!\n");
|
||||
Matrix empty = {0, 0, NULL};
|
||||
return empty;
|
||||
}
|
||||
|
||||
float matrix1Wert = 0;
|
||||
float matrix2Wert = 0;
|
||||
float summe = 0;
|
||||
int broadcasting = 0;
|
||||
|
||||
Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
|
||||
Matrix broadcastedmatrix1 = {0,0,NULL};
|
||||
Matrix broadcastedmatrix2 = {0,0,NULL};
|
||||
|
||||
if((matrix1.rows != matrix2.rows) || (matrix1.cols != matrix2.cols))
|
||||
{
|
||||
if((matrix1.rows != matrix2.rows) && (matrix1.cols == matrix2.cols))
|
||||
{
|
||||
if(matrix1.rows == 1)
|
||||
{
|
||||
broadcastedmatrix1 = createMatrix(matrix2.rows, matrix2.cols);
|
||||
|
||||
for(int row = 0; row<matrix2.rows; row++)
|
||||
{
|
||||
for(int col = 0; col<matrix2.cols; col++)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(matrix1, 0, col);
|
||||
setMatrixAt(matrix1Wert, broadcastedmatrix1, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
broadcasting = 1;
|
||||
}
|
||||
else if(matrix2.rows == 1)
|
||||
{
|
||||
broadcastedmatrix2 = createMatrix(matrix1.rows, matrix1.cols);
|
||||
|
||||
for(int row = 0; row<matrix1.rows; row++)
|
||||
{
|
||||
for(int col = 0; col<matrix1.cols; col++)
|
||||
{
|
||||
matrix2Wert = getMatrixAt(matrix2, 0, col);
|
||||
setMatrixAt(matrix2Wert, broadcastedmatrix2, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
broadcasting = 2;
|
||||
}
|
||||
}
|
||||
else if((matrix1.rows == matrix2.rows) && (matrix1.cols != matrix2.cols))
|
||||
{
|
||||
if(matrix1.cols == 1)
|
||||
{
|
||||
broadcastedmatrix1 = createMatrix(matrix2.rows, matrix2.cols);
|
||||
|
||||
for(int row = 0; row<matrix2.rows; row++)
|
||||
{
|
||||
for(int col = 0; col<matrix2.cols; col++)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(matrix1, row, 0);
|
||||
setMatrixAt(matrix1Wert, broadcastedmatrix1, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
broadcasting = 1;
|
||||
}
|
||||
else if(matrix2.cols == 1)
|
||||
{
|
||||
broadcastedmatrix2 = createMatrix(matrix1.rows, matrix1.cols);
|
||||
|
||||
for(int row = 0; row<matrix1.rows; row++)
|
||||
{
|
||||
for(int col = 0; col<matrix1.cols; col++)
|
||||
{
|
||||
matrix2Wert = getMatrixAt(matrix2, row, 0);
|
||||
setMatrixAt(matrix2Wert, broadcastedmatrix2, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
broadcasting = 2;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
//printf("Fehler bei Addition: Matrix Dimensionen stimmen nicht ueberein!\n");
|
||||
Matrix empty = {0, 0, NULL};
|
||||
return empty;
|
||||
}
|
||||
}
|
||||
|
||||
Matrix ergebnisMatrix;
|
||||
|
||||
switch (broadcasting)
|
||||
{
|
||||
case 0:
|
||||
case 2:
|
||||
ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
|
||||
break;
|
||||
|
||||
case 1:
|
||||
ergebnisMatrix = createMatrix(matrix2.rows, matrix2.cols);
|
||||
break;
|
||||
}
|
||||
|
||||
for(int row = 0; row < ergebnisMatrix.rows; row++)
|
||||
{
|
||||
for(int col = 0; col < ergebnisMatrix.cols; col++)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(matrix1, row, col);
|
||||
matrix2Wert = getMatrixAt(matrix2, row, col);
|
||||
summe = matrix1Wert + matrix2Wert;
|
||||
if(broadcasting == 0)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(matrix1, row, col);
|
||||
matrix2Wert = getMatrixAt(matrix2, row, col);
|
||||
summe = matrix1Wert + matrix2Wert;
|
||||
}
|
||||
else if(broadcasting == 1)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(broadcastedmatrix1, row, col);
|
||||
matrix2Wert = getMatrixAt(matrix2, row, col);
|
||||
summe = matrix1Wert + matrix2Wert;
|
||||
}
|
||||
else if(broadcasting == 2)
|
||||
{
|
||||
matrix1Wert = getMatrixAt(matrix1, row, col);
|
||||
matrix2Wert = getMatrixAt(broadcastedmatrix2, row, col);
|
||||
summe = matrix1Wert + matrix2Wert;
|
||||
}
|
||||
|
||||
setMatrixAt(summe, &ergebnisMatrix, row, col);
|
||||
setMatrixAt(summe, ergebnisMatrix, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
clearMatrix(&broadcastedmatrix1);
|
||||
clearMatrix(&broadcastedmatrix2);
|
||||
|
||||
return ergebnisMatrix;
|
||||
}
|
||||
|
||||
@ -99,7 +210,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
|
||||
{
|
||||
if(matrix1.cols != matrix2.rows)
|
||||
{
|
||||
printf("Fehler bei Multiplikation: Matrix Dimensionen passen nicht ueberein!\n");
|
||||
//printf("Fehler bei Multiplikation: Matrix Dimensionen passen nicht ueberein!\n");
|
||||
Matrix empty = {0, 0, NULL};
|
||||
return empty;
|
||||
}
|
||||
@ -119,7 +230,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
|
||||
erg += getMatrixAt(matrix1, row, k) * getMatrixAt(matrix2, k, col);
|
||||
}
|
||||
|
||||
setMatrixAt(erg, &ergebnisMatrix, row, col);
|
||||
setMatrixAt(erg, ergebnisMatrix, row, col);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user