This commit is contained in:
Kristin 2025-11-25 10:41:30 +01:00
commit 3c4e4df496
6 changed files with 202 additions and 176 deletions

5
.gitignore vendored
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@ -1,4 +1,7 @@
mnist mnist
runTests runTests
*.o *.o
*.exe *.exe
.vscode/c_cpp_properties.json
.vscode/launch.json
.vscode/settings.json

18
.vscode/c_cpp_properties.json vendored Normal file
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@ -0,0 +1,18 @@
{
"configurations": [
{
"name": "windows-gcc-x64",
"includePath": [
"${workspaceFolder}/**"
],
"compilerPath": "C:/ProgramData/mingw64/mingw64/bin/gcc.exe",
"cStandard": "${default}",
"cppStandard": "${default}",
"intelliSenseMode": "windows-gcc-x64",
"compilerArgs": [
""
]
}
],
"version": 4
}

24
.vscode/launch.json vendored Normal file
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@ -0,0 +1,24 @@
{
"version": "0.2.0",
"configurations": [
{
"name": "C/C++ Runner: Debug Session",
"type": "cppdbg",
"request": "launch",
"args": [],
"stopAtEntry": false,
"externalConsole": true,
"cwd": "c:/Users/Max-R/I2Pr/repoKachelto/I2-Pr_neuronalesNetz/info2Praktikum-NeuronalesNetz",
"program": "c:/Users/Max-R/I2Pr/repoKachelto/I2-Pr_neuronalesNetz/info2Praktikum-NeuronalesNetz/build/Debug/outDebug",
"MIMode": "gdb",
"miDebuggerPath": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
}
]
}

58
.vscode/settings.json vendored
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@ -1,3 +1,59 @@
{ {
"makefile.configureOnOpen": false "C_Cpp_Runner.cCompilerPath": "gcc",
"C_Cpp_Runner.cppCompilerPath": "g++",
"C_Cpp_Runner.debuggerPath": "gdb",
"C_Cpp_Runner.cStandard": "",
"C_Cpp_Runner.cppStandard": "",
"C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/VR_NR/Community/VC/Auxiliary/Build/vcvarsall.bat",
"C_Cpp_Runner.useMsvc": false,
"C_Cpp_Runner.warnings": [
"-Wall",
"-Wextra",
"-Wpedantic",
"-Wshadow",
"-Wformat=2",
"-Wcast-align",
"-Wconversion",
"-Wsign-conversion",
"-Wnull-dereference"
],
"C_Cpp_Runner.msvcWarnings": [
"/W4",
"/permissive-",
"/w14242",
"/w14287",
"/w14296",
"/w14311",
"/w14826",
"/w44062",
"/w44242",
"/w14905",
"/w14906",
"/w14263",
"/w44265",
"/w14928"
],
"C_Cpp_Runner.enableWarnings": true,
"C_Cpp_Runner.warningsAsError": false,
"C_Cpp_Runner.compilerArgs": [],
"C_Cpp_Runner.linkerArgs": [],
"C_Cpp_Runner.includePaths": [],
"C_Cpp_Runner.includeSearch": [
"*",
"**/*"
],
"C_Cpp_Runner.excludeSearch": [
"**/build",
"**/build/**",
"**/.*",
"**/.*/**",
"**/.vscode",
"**/.vscode/**"
],
"C_Cpp_Runner.useAddressSanitizer": false,
"C_Cpp_Runner.useUndefinedSanitizer": false,
"C_Cpp_Runner.useLeakSanitizer": false,
"C_Cpp_Runner.showCompilationTime": false,
"C_Cpp_Runner.useLinkTimeOptimization": false,
"C_Cpp_Runner.msvcSecureNoWarnings": false
} }

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@ -62,4 +62,5 @@ ifeq ($(OS),Windows_NT)
del /f *.o *.exe del /f *.o *.exe
else else
rm -f *.o mnist runMatrixTests runNeuralNetworkTests runImageInputTests rm -f *.o mnist runMatrixTests runNeuralNetworkTests runImageInputTests
endif endif

270
matrix.c
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@ -10,34 +10,15 @@
} Matrix;*/ } Matrix;*/
Matrix createMatrix(unsigned int rows, unsigned int cols) { Matrix createMatrix(unsigned int rows, unsigned int cols) {
if (cols == 0 || rows == 0) {
Matrix matrix; // neue Metrix Struktur erstellen Matrix errorMatrix = {0, 0, NULL};
Matrix errorMatrix = {0, 0, NULL}; // Fehlermatrix zum zurückgeben
if (rows == 0 || cols == 0) { // fehlerhafte Parameter übergeben
return errorMatrix; return errorMatrix;
} }
MatrixType *buffer =
matrix.rows = rows; // nach dem Prüfen auf unmögliche Angaben kann die Matrix malloc(rows * cols * sizeof(MatrixType)); // Speicher reservieren, malloc
// erstellt werden // liefert Zeiger auf Speicher
matrix.cols = cols; Matrix newMatrix = {rows, cols, buffer}; // neue Matrix nach struct
return newMatrix;
matrix.buffer =
malloc(rows * cols * sizeof(MatrixType)); // Speicher reservieren
if (matrix.buffer == NULL) { // Prüfen, ob Speicher reserviert werden konnte
matrix.rows = 0;
matrix.cols = 0;
return matrix;
}
for (int r = 0; r < rows; r++) {
for (int c = 0; c < cols; c++) {
matrix.buffer[r * matrix.cols + c] = UNDEFINED_MATRIX_VALUE;
}
}
return matrix;
} }
void clearMatrix(Matrix *matrix) { void clearMatrix(Matrix *matrix) {
@ -53,14 +34,13 @@ void setMatrixAt(const MatrixType value, Matrix matrix,
const unsigned int rowIdx, // Kopie der Matrix wird übergeben const unsigned int rowIdx, // Kopie der Matrix wird übergeben
const unsigned int colIdx) { const unsigned int colIdx) {
if (rowIdx >= matrix.rows || colIdx >= matrix.cols || if (rowIdx >= matrix.rows || colIdx >= matrix.cols) {
matrix.buffer == NULL) { // Speichergröße nicht überschreiten // Speichergröße nicht überschreiten
return; return;
} }
matrix.buffer[rowIdx * matrix.cols + colIdx] = value;
matrix.buffer[rowIdx * matrix.cols + colIdx] = // rowIdx * matrix.cols -> Beginn der Zeile colIdx ->Spalte
value; // rowIdx * matrix.cols -> Beginn der Zeile colIdx ->Spalte // innerhalb der Zeile
// innerhalb der Zeile
} }
MatrixType getMatrixAt(const Matrix matrix, MatrixType getMatrixAt(const Matrix matrix,
unsigned int rowIdx, // Kopie der Matrix wird übergeben unsigned int rowIdx, // Kopie der Matrix wird übergeben
@ -74,187 +54,131 @@ MatrixType getMatrixAt(const Matrix matrix,
return value; return value;
} }
Matrix broadcastingCols(const Matrix matrix, const unsigned int cols) {
Matrix broadCastCols(const Matrix matrix, const unsigned int rows, Matrix copy1 = createMatrix(matrix.rows, cols);
const unsigned int cols) { for (int r = 0; r < matrix.rows; r++) {
MatrixType valueMatrix1 = getMatrixAt(matrix, r, 0);
Matrix copy = createMatrix(
rows, cols); // Matrix 1 Kopie erstellen mit Dimensionen von Matrix2
for (int r = 0; r < rows; r++) {
MatrixType value = getMatrixAt(matrix, r, 0);
for (int c = 0; c < cols; c++) { for (int c = 0; c < cols; c++) {
setMatrixAt(valueMatrix1, copy1, r, c);
setMatrixAt(value, copy, r, c);
} }
} }
return copy1;
return copy;
} }
Matrix broadCastRows(const Matrix matrix, const unsigned int rows, Matrix broadcastingRows(const Matrix matrix, const unsigned int rows) {
const unsigned int cols) { Matrix copy1 = createMatrix(rows, matrix.cols);
for (int c = 0; c < matrix.cols; c++) {
Matrix copy = createMatrix(rows, cols); MatrixType valueMatrix1 = getMatrixAt(matrix, 0, c);
for (int c = 0; c < cols; c++) {
MatrixType value = getMatrixAt(matrix, 0, c);
for (int r = 0; r < rows; r++) { for (int r = 0; r < rows; r++) {
setMatrixAt(valueMatrix1, copy1, r, c);
setMatrixAt(value, copy, r, c);
} }
} }
return copy1;
return copy;
} }
Matrix add(const Matrix matrix1, const Matrix matrix2) { Matrix add(const Matrix matrix1, const Matrix matrix2) {
const unsigned int rows1 = matrix1.rows; // Ergebnismatrix
const unsigned int rows2 = matrix2.rows; Matrix result;
const unsigned int cols1 = matrix1.cols; const int cols1 = matrix1.cols;
const unsigned int cols2 = matrix2.cols; const int rows1 = matrix1.rows;
const int cols2 = matrix2.cols;
const int rows2 = matrix2.rows;
const int rowsEqual = ((rows1 == rows2) ? 1 : 0); const int rowsEqual = (matrix1.rows == matrix2.rows) ? 1 : 0;
const int colsEqual = (matrix1.cols == matrix2.cols) ? 1 : 0;
const int colsEqual = ((cols1 == cols2) ? 1 : 0); // Broadcasting nur bei Vektor und Matrix, Fehlermeldung bei zwei unpassender
// Matrix
if (rowsEqual && colsEqual) // addieren if (rowsEqual == 1 && colsEqual == 1) {
Matrix result = createMatrix(matrix1.rows, matrix1.cols);
{
Matrix result = createMatrix(rows1, cols1); // Speicher reservieren
if (result.buffer == NULL) { if (result.buffer == NULL) {
return (Matrix){0, 0, NULL}; return (Matrix){0, 0, NULL};
} }
for (int i = 0; i < rows1; i++) {
for (int i = 0; i < (rows1 * cols1); i++) { // addieren for (int j = 0; j < cols1; j++) {
int valueM1 = getMatrixAt(matrix1, i, j);
result.buffer[i] = int valueM2 = getMatrixAt(matrix2, i, j);
(matrix1.buffer[i] + int sum = valueM1 + valueM2;
matrix2.buffer[i]); // buffer[i] ⇔ *(buffer + i) Adresse = setMatrixAt(sum, result, i, j);
// Startadresse + (i * sizeof(MatrixType)) }
} }
return result;
return result; // zurückgeben } else if (rowsEqual == 1 && (cols1 == 1 || cols2 == 1)) {
} if (cols1 == 1) { // broadcasting von vektor 1 zu matrix 1, add
Matrix newMatrix = broadcastingCols(matrix1, cols2);
else if (rowsEqual && !colsEqual) { // add
Matrix result = createMatrix(newMatrix.rows, newMatrix.cols);
if (cols1 == 1) {
Matrix result = createMatrix(rows2, cols2);
if (result.buffer == NULL) { if (result.buffer == NULL) {
return (Matrix){0, 0, NULL}; return (Matrix){0, 0, NULL};
} }
for (int i = 0; i < rows1; i++) {
Matrix copy1 = broadCastCols(matrix1, rows2, cols2); for (int j = 0; j < cols2; j++) {
if (!copy1.buffer) { int valueM1 = getMatrixAt(newMatrix, i, j);
clearMatrix(&result); int valueM2 = getMatrixAt(matrix2, i, j);
int sum = valueM1 + valueM2;
setMatrixAt(sum, result, i, j);
}
}
return result;
} else {
Matrix newMatrix2 = broadcastingCols(matrix2, cols1);
// add
Matrix result = createMatrix(newMatrix2.rows, newMatrix2.cols);
if (result.buffer == NULL) {
return (Matrix){0, 0, NULL}; return (Matrix){0, 0, NULL};
} }
for (int i = 0; i < rows1; i++) {
for (unsigned int i = 0; i < rows2 * cols2; i++) { for (int j = 0; j < cols1; j++) {
result.buffer[i] = copy1.buffer[i] + matrix2.buffer[i]; int valueM1 = getMatrixAt(matrix1, i, j);
int valueM2 = getMatrixAt(newMatrix2, i, j);
int sum = valueM1 + valueM2;
setMatrixAt(sum, result, i, j);
}
} }
/* freigeben, weil nicht mehr benötigt */
clearMatrix(&copy1);
return result;
// add und return
} else if (cols2 == 1) {
Matrix result = createMatrix(rows1, cols1);
if (result.buffer == NULL) {
Matrix error = {0, 0, NULL};
return error;
}
// Matrix2 hat nur eine Spalte -> horizontal broadcasten
Matrix copy2 = broadCastCols(matrix2, rows1, cols1);
for (unsigned int i = 0; i < rows1 * cols1; i++) {
result.buffer[i] = matrix1.buffer[i] + copy2.buffer[i];
}
// Optional: Speicher von copy2 freigeben
clearMatrix(&copy2);
return result; return result;
} }
else {
printf("Fehlermeldung"); // vielleicht Fehlermeldung ändern zu
// Programmabbruch
Matrix error = {0, 0, NULL};
return error;
}
} }
else if (!rowsEqual && colsEqual) { else if ((rows1 == 1 || rows2 == 1) && colsEqual == 1) {
if (rows1 == 1) { if (rows1 == 1) {
Matrix newMatrix = broadcastingRows(matrix1, rows2);
Matrix result = createMatrix(rows2, cols2); // add
Matrix result = createMatrix(newMatrix.rows, newMatrix.cols);
if (result.buffer == NULL) { if (result.buffer == NULL) {
return (Matrix){0, 0, NULL}; return (Matrix){0, 0, NULL};
} }
for (int i = 0; i < rows2; i++) {
Matrix copy1 = broadCastRows(matrix1, rows2, cols2); for (int j = 0; j < cols1; j++) {
int valueM1 = getMatrixAt(newMatrix, i, j);
for (int i = 0; i < (rows2 * cols2); i++) { // addieren int valueM2 = getMatrixAt(matrix2, i, j);
int sum = valueM1 + valueM2;
result.buffer[i] = setMatrixAt(sum, result, i, j);
(copy1.buffer[i] + }
matrix2.buffer[i]); // buffer[i] ⇔ *(buffer + i) Adresse =
// Startadresse + (i * sizeof(MatrixType))
} }
return result; return result;
} else {
// add und return Matrix newMatrix2 = broadcastingRows(matrix2, rows1);
// add
} else if (rows2 == 1) { Matrix result = createMatrix(newMatrix2.rows, newMatrix2.cols);
Matrix result = createMatrix(rows1, cols1);
if (result.buffer == NULL) { if (result.buffer == NULL) {
return (Matrix){0, 0, NULL}; return (Matrix){0, 0, NULL};
} }
for (int i = 0; i < rows1; i++) {
Matrix copy2 = broadCastRows(matrix2, rows1, cols1); for (int j = 0; j < cols1; j++) {
int valueM1 = getMatrixAt(matrix1, i, j);
// add und return int valueM2 = getMatrixAt(newMatrix2, i, j);
int sum = valueM1 + valueM2;
for (int i = 0; i < (rows1 * cols1); i++) { // addieren setMatrixAt(sum, result, i, j);
}
result.buffer[i] =
(matrix1.buffer[i] +
copy2.buffer[i]); // buffer[i] ⇔ *(buffer + i) Adresse =
// Startadresse + (i * sizeof(MatrixType))
} }
return result; return result;
}
else {
printf("Fehlermeldung"); // vielleicht Fehlermeldung ändern zu
// Programmabbruch
Matrix error = {0, 0, NULL};
return error;
} }
} else {
// kein add möglich
Matrix errorMatrix = {0, 0, NULL};
return errorMatrix;
} }
return result;
else {
printf("Fehlermeldung"); // vielleicht Fehlermeldung ändern zu
// Programmabbruch
Matrix error = {0, 0, NULL};
return error;
}
} }
Matrix multiply(const Matrix matrix1, const Matrix matrix2) { Matrix multiply(const Matrix matrix1, const Matrix matrix2) {
// Spalten1 müssen gleich zeilen2 sein! dann multiplizieren // Spalten1 müssen gleich zeilen2 sein! dann multiplizieren
if (matrix1.cols == matrix2.rows) { if (matrix1.cols == matrix2.rows) {