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Add hash functions for chrono objects

This commit is contained in:
Martchus 2016-11-26 13:07:05 +01:00
parent 5679460302
commit c728f0ffe0
3 changed files with 40 additions and 0 deletions
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10
chrono/datetime.h
View File

@ -486,4 +486,14 @@ inline DateTime &DateTime::operator -=(const TimeSpan &timeSpan)
}
namespace std {
template<> struct hash<ChronoUtilities::DateTime>
{
inline size_t operator()(const ChronoUtilities::DateTime &dateTime) const
{
return hash<decltype (dateTime.totalTicks())>()(dateTime.totalTicks());
}
};
}
#endif // CHRONO_UTILITIES_DATETIME_H

10
chrono/timespan.h
View File

@ -363,4 +363,14 @@ constexpr inline bool TimeSpan::isInfinity() const
}
namespace std {
template<> struct hash<ChronoUtilities::TimeSpan>
{
inline size_t operator()(const ChronoUtilities::TimeSpan &timeSpan) const
{
return hash<decltype (timeSpan.totalTicks())>()(timeSpan.totalTicks());
}
};
}
#endif // CHRONO_UTILITIES_TIMESPAN_H

20
tests/chronotests.cpp
View File

@ -24,6 +24,7 @@ class ChronoTests : public TestFixture
CPPUNIT_TEST(testDateTime);
CPPUNIT_TEST(testTimeSpan);
CPPUNIT_TEST(testOperators);
CPPUNIT_TEST(testHashing);
CPPUNIT_TEST_SUITE_END();
public:
@ -33,6 +34,7 @@ public:
void testDateTime();
void testTimeSpan();
void testOperators();
void testHashing();
};
CPPUNIT_TEST_SUITE_REGISTRATION(ChronoTests);
@ -116,3 +118,21 @@ void ChronoTests::testOperators()
CPPUNIT_ASSERT_EQUAL(5, dateTime.day());
CPPUNIT_ASSERT_EQUAL(2, Period(dateTime, dateTime + TimeSpan::fromDays(62)).months());
}
/*!
* \brief Tests hashing DateTime / TimeSpan by using in a set.
*/
void ChronoTests::testHashing()
{
set<DateTime> dateTimes;
dateTimes.emplace(DateTime::fromDate(2500, 2, 1));
dateTimes.emplace(DateTime::fromDate(2500, 2, 2));
dateTimes.emplace(DateTime::fromDate(2500, 2, 1));
CPPUNIT_ASSERT_EQUAL(2ul, dateTimes.size());
set<TimeSpan> timeSpans;
timeSpans.emplace(TimeSpan::fromDays(5));
timeSpans.emplace(TimeSpan::fromDays(10));
timeSpans.emplace(TimeSpan::fromDays(5));
CPPUNIT_ASSERT_EQUAL(2ul, timeSpans.size());
}