Made modify fields mandatory

1 files changed, 9 insertions, 2 deletions

diff --git a/gtk_win.c b/gtk_win.c
index 07ee553dd190..2f3049b32518 100644
--- a/gtk_win.c
+++ b/gtk_win.c
@@ -232,8 +232,15 @@ void on_modify_entry_activate(GtkEntry* entry) {
     char symbol[strlen(gsymbol) + 1];
     strcpy(symbol, gsymbol);
     strtoupper(symbol);
-    double amount = strtod(gtk_entry_get_text(amount_entry), NULL);
-    double spent = strtod(gtk_entry_get_text(spent_entry), NULL);
+    const gchar* amount_str = gtk_entry_get_text(amount_entry);
+    const gchar* spent_str = gtk_entry_get_text(spent_entry);
+    if (symbol[0] == '\0' || amount_str[0] == '\0' || spent_str[0] == '\0') {
+        show_generic_message_dialog("Modification fields may not be empty.", FALSE);
+        return;
+    }
+
+    double amount = strtod(amount_str, NULL);
+    double spent = strtod(spent_str, NULL);
 
     GValue gtext = G_VALUE_INIT;
     g_value_init(&gtext, G_TYPE_STRING);