Do not print generic document if it's null

Author: Kyrylo

examples/c/src/snippets/datacapture/credit_card_scanner.c

@@ -18,9 +18,7 @@ scanbotsdk_error_code_t print_credit_card_result(scanbotsdk_credit_card_scanning
     const char *detection_status_str = NULL;
     scanbotsdk_document_detection_status_t_to_string(detection_status, &detection_status_str);
     printf("Document Detection status: %s\n", detection_status_str);
-    if (credit_card != NULL) {
-        ec = print_generic_document_fields(credit_card);
-    }
+    ec = print_generic_document_fields(credit_card);
     return ec;
 }
 

examples/c/src/utils/utils.c

@@ -13,6 +13,10 @@ scanbotsdk_error_code_t load_image_from_path(const char *path, scanbotsdk_image_
 }
 
 scanbotsdk_error_code_t print_generic_document_fields(scanbotsdk_generic_document_t *doc) {
+    if (doc == NULL) {
+        printf("No document data available.\n");
+        return SCANBOTSDK_OK;
+    }
     size_t fields_count = 0;
     scanbotsdk_field_t **fields = NULL;
     scanbotsdk_error_code_t ec = scanbotsdk_generic_document_get_fields_size(doc, &fields_count);