From 32ebcca4a5fb4a165739b305efbb17f7b2508412 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Fri, 27 Aug 2021 19:30:58 +0100
Subject: Make date/time types easy to create and compare

---
 lib/dbTypes.h      |  7 +++++++
 test/test-misc.cpp | 11 +++++++++++
 2 files changed, 18 insertions(+)

diff --git a/lib/dbTypes.h b/lib/dbTypes.h
index e17315b..a9ed029 100644
--- a/lib/dbTypes.h
+++ b/lib/dbTypes.h
@@ -51,6 +51,7 @@ namespace MyGrate {
 					boost::numeric_cast<uint8_t>(tm.tm_mday))
 		{
 		}
+		bool operator<=>(const Date &) const = default;
 		uint16_t year;
 		uint8_t month;
 		uint8_t day;
@@ -63,6 +64,7 @@ namespace MyGrate {
 					boost::numeric_cast<uint8_t>(tm.tm_sec))
 		{
 		}
+		bool operator<=>(const Time &) const = default;
 		uint8_t hour;
 		uint8_t minute;
 		uint8_t second;
@@ -70,7 +72,12 @@ namespace MyGrate {
 	struct DateTime : public Date, public Time {
 		inline DateTime() { }
 		inline DateTime(const Date & d, const Time & t) : Date {d}, Time {t} { }
+		inline DateTime(uint16_t y, uint8_t m, uint8_t d, uint8_t H, uint8_t M, uint8_t S) :
+			DateTime {{y, m, d}, {H, M, S}}
+		{
+		}
 		explicit inline DateTime(const tm & tm) : Date {tm}, Time {tm} { }
+		bool operator<=>(const DateTime &) const = default;
 	};
 	using Blob = std::span<const std::byte>;
 
diff --git a/test/test-misc.cpp b/test/test-misc.cpp
index 3f45927..515a9c7 100644
--- a/test/test-misc.cpp
+++ b/test/test-misc.cpp
@@ -88,3 +88,14 @@ BOOST_AUTO_TEST_CASE_TEMPLATE(DbValueConvFloatToString, F, Floats)
 	MyGrate::DbValue v {F {123}};
 	BOOST_CHECK_EQUAL((std::string)v, "123.000000"s);
 }
+
+BOOST_AUTO_TEST_CASE(create_datetime)
+{
+	struct tm tm;
+	time_t t {1629222289};
+	gmtime_r(&t, &tm);
+	BOOST_REQUIRE_EQUAL(tm.tm_gmtoff, 0);
+	BOOST_REQUIRE_EQUAL(tm.tm_isdst, 0);
+	MyGrate::DateTime dt {tm};
+	BOOST_CHECK_EQUAL(dt, (MyGrate::DateTime {2021, 8, 17, 17, 44, 49}));
+}
-- 
cgit v1.2.3