Show inconsistent information if it is present in .cfg and .names files

src/data.c

@@ -512,14 +512,20 @@ matrix load_tags_paths(char **paths, int n, int k)
     return y;
 }
 
-char **get_labels(char *filename)
+char **get_labels_custom(char *filename, int *size)
 {
     list *plist = get_paths(filename);
+	if(size) *size = plist->size;
     char **labels = (char **)list_to_array(plist);
     free_list(plist);
     return labels;
 }
 
+char **get_labels(char *filename)
+{
+	return get_labels_custom(filename, NULL);
+}
+
 void free_data(data d)
 {
     if(!d.shallow){

src/data.h

@@ -100,6 +100,7 @@ data load_data_writing(char **paths, int n, int m, int w, int h, int out_w, int
 
 list *get_paths(char *filename);
 char **get_labels(char *filename);
+char **get_labels_custom(char *filename, int *size);
 void get_random_batch(data d, int n, float *X, float *y);
 data get_data_part(data d, int part, int total);
 data get_random_data(data d, int num);

src/detector.c

@@ -1069,7 +1069,8 @@ void test_detector(char *datacfg, char *cfgfile, char *weightfile, char *filenam
 {
     list *options = read_data_cfg(datacfg);
     char *name_list = option_find_str(options, "names", "data/names.list");
-    char **names = get_labels(name_list);
+	int names_size = 0;
+	char **names = get_labels_custom(name_list, &names_size); //get_labels(name_list);
 
     image **alphabet = load_alphabet();
     network net = parse_network_cfg_custom(cfgfile, 1); // set batch=1
@@ -1078,6 +1079,11 @@ void test_detector(char *datacfg, char *cfgfile, char *weightfile, char *filenam
     }
     //set_batch_network(&net, 1);
 	fuse_conv_batchnorm(net);
+	if (net.layers[net.n - 1].classes != names_size) {
+		printf(" Error: in the file %s number of names %d that isn't equal to classes=%d in the file %s \n", 
+			name_list, names_size, net.layers[net.n - 1].classes, datacfg);
+		if(net.layers[net.n - 1].classes > names_size) getchar();
+	}
     srand(2222222);
     double time;
     char buff[256];

src/network.c

@@ -602,12 +602,18 @@ void custom_get_region_detections(layer l, int w, int h, int net_w, int net_h, f
 
 void fill_network_boxes(network *net, int w, int h, float thresh, float hier, int *map, int relative, detection *dets, int letter)
 {
+	int prev_classes = -1;
 	int j;
 	for (j = 0; j < net->n; ++j) {
 		layer l = net->layers[j];
 		if (l.type == YOLO) {
 			int count = get_yolo_detections(l, w, h, net->w, net->h, thresh, map, relative, dets, letter);
 			dets += count;
+			if (prev_classes < 0) prev_classes = l.classes;
+			else if (prev_classes != l.classes) {
+				printf(" Error: Different [yolo] layers have different number of classes = %d and %d - check your cfg-file! \n",
+					prev_classes, l.classes);
+			}
 		}
 		if (l.type == REGION) {
 			custom_get_region_detections(l, w, h, net->w, net->h, thresh, map, hier, relative, dets, letter);