rem: g_return_val_if_fail ( string, NULL );
add: g_return_val_if_fail ( string, FALSE );
context: gboolean csv_import_parse_breakdown ( struct struct_ope_importation * ope, gchar * string ){    g_return_val_if_fail ( string, NULL );    if ( ! strcmp ( string, "V" ) )    {	ope -> operation_ventilee = 1;    }    return TRUE;}