diff --git a/src/mnist/include/neuron.h b/src/mnist/include/neuron.h
index 0478dbc..92556a9 100644
--- a/src/mnist/include/neuron.h
+++ b/src/mnist/include/neuron.h
@@ -1,7 +1,7 @@
 #ifndef DEF_NEURON_H
 #define DEF_NEURON_H
 
-typedef struct Neuron{
+typedef struct Neuron {
     float* weights; // Liste de tous les poids des arêtes sortants du neurone
     float bias; // Caractérise le bias du neurone
     float z; // Sauvegarde des calculs faits sur le neurone (programmation dynamique)
@@ -13,12 +13,12 @@ typedef struct Neuron{
 } Neuron;
 
 
-typedef struct Layer{
+typedef struct Layer {
     int nb_neurons; // Nombre de neurones dans la couche (longueur du tableau ci-dessous)
     Neuron** neurons; // Tableau des neurones dans la couche
 } Layer;
 
-typedef struct Network{
+typedef struct Network {
     int nb_layers; // Nombre de couches dans le réseau neuronal (longueur du tableau ci-dessous)
     Layer** layers; // Tableau des couches dans le réseau neuronal
 } Network;
diff --git a/src/mnist/mnist.c b/src/mnist/mnist.c
index 12863d7..8edabb8 100644
--- a/src/mnist/mnist.c
+++ b/src/mnist/mnist.c
@@ -19,9 +19,9 @@ int** read_image(unsigned int width, unsigned int height, FILE* ptr) {
 
     fread(buffer, sizeof(buffer), 1, ptr);
 
-    for (int i=0; i<height; i++) {
+    for (int i=0; i < (int)height; i++) {
         int* line = (int*)malloc(line_size);
-        for (int j=0; j<width; j++) {
+        for (int j=0; j < (int)width; j++) {
             line[j] = (int)buffer[j+i*width];
         }
         image[i] = line;
@@ -31,7 +31,7 @@ int** read_image(unsigned int width, unsigned int height, FILE* ptr) {
 
 // renvoie [nb_elem, width, height]
 int* read_mnist_images_parameters(char* filename) {
-    int* tab = malloc(sizeof(int)*3);
+    int* tab = (int*)malloc(sizeof(int)*3);
     FILE *ptr;
     
     ptr = fopen(filename, "rb");
@@ -113,7 +113,7 @@ int*** read_mnist_images(char* filename) {
 
     int*** tab = (int***)malloc(sizeof(int**)*number_of_images);
 
-    for (int i=0; i < number_of_images; i++) {
+    for (int i=0; i < (int)number_of_images; i++) {
         tab[i] = read_image(width, height, ptr);
     }
     return tab;
@@ -142,9 +142,9 @@ unsigned int* read_mnist_labels(char* filename) {
     unsigned char buffer[number_of_items];
     fread(buffer, sizeof(unsigned char), number_of_items, ptr);
 
-    unsigned int* labels = malloc(sizeof(unsigned int)*number_of_items);
+    unsigned int* labels = (unsigned int*)malloc(sizeof(unsigned int)*number_of_items);
 
-    for (int i=0; i< number_of_items; i++) {
+    for (int i=0; i < (int)number_of_items; i++) {
         labels[i] = (unsigned int)buffer[i];
     }
     return labels;
diff --git a/src/mnist/neuron_io.c b/src/mnist/neuron_io.c
index fa26e37..53c954f 100644
--- a/src/mnist/neuron_io.c
+++ b/src/mnist/neuron_io.c
@@ -9,7 +9,7 @@
 
 
 Neuron* read_neuron(uint32_t nb_weights, FILE *ptr) {
-    Neuron* neuron = malloc(sizeof(Neuron));
+    Neuron* neuron = (Neuron*)malloc(sizeof(Neuron));
     float activation;
     float bias;
     float tmp;
@@ -23,13 +23,13 @@ Neuron* read_neuron(uint32_t nb_weights, FILE *ptr) {
     neuron->last_back_bias = 0.0;
     neuron->back_bias = 0.0;
 
-    float* weights = malloc(sizeof(float)*nb_weights);
+    float* weights = (float*)malloc(sizeof(float)*nb_weights);
 
-    neuron->last_back_weights = malloc(sizeof(float)*nb_weights);
-    neuron->back_weights = malloc(sizeof(float)*nb_weights);
+    neuron->last_back_weights = (float*)malloc(sizeof(float)*nb_weights);
+    neuron->back_weights = (float*)malloc(sizeof(float)*nb_weights);
     neuron->weights = weights;
 
-    for (int i=0; i < nb_weights; i++) {
+    for (int i=0; i < (int)nb_weights; i++) {
         fread(&tmp, sizeof(float), 1, ptr);
         neuron->weights[i] = tmp;
         neuron->back_weights[i] = 0.0;
@@ -42,8 +42,8 @@ Neuron* read_neuron(uint32_t nb_weights, FILE *ptr) {
 
 // Lit une couche de neurones
 Neuron** read_neurons(uint32_t nb_neurons, uint32_t nb_weights, FILE *ptr) {
-    Neuron** neurons = malloc(sizeof(Neuron*)*nb_neurons);
-    for (int i=0; i < nb_neurons; i++) {
+    Neuron** neurons = (Neuron**)malloc(sizeof(Neuron*)*nb_neurons);
+    for (int i=0; i < (int)nb_neurons; i++) {
         neurons[i] = read_neuron(nb_weights, ptr);
     }
     return neurons;
@@ -53,7 +53,7 @@ Neuron** read_neurons(uint32_t nb_neurons, uint32_t nb_weights, FILE *ptr) {
 // Charge l'entièreté du réseau neuronal depuis un fichier binaire
 Network* read_network(char* filename) {
     FILE *ptr;
-    Network* network = malloc(sizeof(Network));
+    Network* network = (Network*)malloc(sizeof(Network));
     
     ptr = fopen(filename, "rb");
 
@@ -71,20 +71,20 @@ Network* read_network(char* filename) {
     network->nb_layers = nb_layers;
 
 
-    Layer** layers = malloc(sizeof(Layer*)*nb_layers);
+    Layer** layers = (Layer**)malloc(sizeof(Layer*)*nb_layers);
     uint32_t nb_neurons_layer[nb_layers+1];
 
-    network->layers  = layers;
+    network->layers = layers;
 
-    for (int i=0; i < nb_layers; i++) {
-        layers[i] = malloc(sizeof(Layer));
+    for (int i=0; i < (int)nb_layers; i++) {
+        layers[i] = (Layer*)malloc(sizeof(Layer));
         fread(&tmp, sizeof(tmp), 1, ptr);
         layers[i]->nb_neurons = tmp;
         nb_neurons_layer[i] = tmp;
     }
     nb_neurons_layer[nb_layers] = 0;
 
-    for (int i=0; i < nb_layers; i++) {
+    for (int i=0; i < (int)nb_layers; i++) {
         layers[i]->neurons = read_neurons(layers[i]->nb_neurons, nb_neurons_layer[i+1], ptr);
     }
 
@@ -136,4 +136,4 @@ int write_network(char* filename, Network* network) {
 
     fclose(ptr);
     return 1;
-}
\ No newline at end of file
+}