From 282a412ef5038737a568f743652c59af793e9d86 Mon Sep 17 00:00:00 2001
From: Gerhard Hoffmann <g.hoffmann@atb-online.eu>
Date: Tue, 12 Dec 2023 10:23:45 +0100
Subject: [PATCH] IsYearPeriodActive(): return true, even if no YearPeriod is
 given in tariff-json-file.

---
 library/src/utilities.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/src/utilities.cpp b/library/src/utilities.cpp
index d3a8b76..9a4f3db 100644
--- a/library/src/utilities.cpp
+++ b/library/src/utilities.cpp
@@ -197,7 +197,8 @@ bool Utilities::IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTim
 }
 
 bool Utilities::IsYearPeriodActive(Configuration const *cfg, QDateTime const &dt) {
-    if (std::none_of(cfg->YearPeriod.cbegin(),
+    if ((cfg->YearPeriod.size() > 0) &&
+        std::none_of(cfg->YearPeriod.cbegin(),
                      cfg->YearPeriod.cend(),
             [&dt](std::pair<int, ATBPeriodYear> const &year) {
                 QDate const d(2004, // 2004 is a leap year