version 3.19.0

PIMathVectorT subvector methods
PISystemTime::isNull()
PISystemTime::Frequency::isNull()
PISystemTime::toString()
PISystemTime::fromString()
PIVariant can handle strings with PISystemTime
PIDateTime::toSystemTime() now returns null time from invalid strings

libs/main/literals/piliterals_time.h

@@ -29,6 +29,51 @@
 #include "pisystemtime.h"
 
 
+//! \~\brief
+//! \~english PISystemTime from days
+//! \~russian PISystemTime из дней
+inline PISystemTime operator""_d(long double v) {
+	return PISystemTime::fromSeconds(v * 60. * 60. * 24.);
+}
+
+//! \~\brief
+//! \~english PISystemTime from days
+//! \~russian PISystemTime из дней
+inline PISystemTime operator""_d(unsigned long long v) {
+	return PISystemTime::fromSeconds(v * 60. * 60. * 24.);
+}
+
+
+//! \~\brief
+//! \~english PISystemTime from hours
+//! \~russian PISystemTime из часов
+inline PISystemTime operator""_h(long double v) {
+	return PISystemTime::fromSeconds(v * 60. * 60.);
+}
+
+//! \~\brief
+//! \~english PISystemTime from hours
+//! \~russian PISystemTime из часов
+inline PISystemTime operator""_h(unsigned long long v) {
+	return PISystemTime::fromSeconds(v * 60. * 60.);
+}
+
+
+//! \~\brief
+//! \~english PISystemTime from minutes
+//! \~russian PISystemTime из минут
+inline PISystemTime operator""_m(long double v) {
+	return PISystemTime::fromSeconds(v * 60.);
+}
+
+//! \~\brief
+//! \~english PISystemTime from minutes
+//! \~russian PISystemTime из минут
+inline PISystemTime operator""_m(unsigned long long v) {
+	return PISystemTime::fromSeconds(v * 60.);
+}
+
+
 //! \~\brief
 //! \~english PISystemTime from seconds
 //! \~russian PISystemTime из секунд