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Matrix Strct erstellt/Erste Matrixfunktionen geschrieben

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This commit is contained in:
Jens Burger 2025-11-13 15:54:04 +01:00
parent d0c0b9928b
commit 80481f037d
2 changed files with 51 additions and 5 deletions
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41
matrix.c
View File

@ -6,22 +6,63 @@
Matrix createMatrix(unsigned int rows, unsigned int cols)
{
Matrix matrix;
matrix.rows = rows;
matrix.cols = cols;
matrix.buffer = malloc(rows * cols * sizeof(float));
if(matrix.buffer == NULL)
{
printf("Fehler bei der Speicherreservierung! Keine Matrix erstellt!");
matrix.rows = 0;
matrix.cols = 0;
}
return matrix;
}
void clearMatrix(Matrix *matrix)
{
free(matrix.buffer);
matrix->buffer = NULL;
matrix->rows = 0;
matrix->cols = 0;
}
void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
{
if(matrix.buffer == NULL)
{
printf("Fehler beim Setzen! Matrix nicht initialisiert");
return;
}
if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
{
printf("Ungueltige Indizes beim Setzen!\n");
return;
}
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");
return 0;
}
if(rowIdx >= matrix.rows || colIdx >= matrix.cols)
{
printf("Ungueltige Indizes beim Lesen!\n");
return 0;
}
return matrix.buffer[rowIdx * matrix.cols + colIdx];
}
Matrix add(const Matrix matrix1, const Matrix matrix2)

7
matrix.h
View File

@ -6,7 +6,12 @@
typedef float MatrixType;
// TODO Matrixtyp definieren
typedef struct
{
int rows;
int cols;
float *buffer;
} Matrix;
Matrix createMatrix(unsigned int rows, unsigned int cols);
void clearMatrix(Matrix *matrix);