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llvm-project/libcxx/test/std/utilities/time
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Martin Storsjö 02f1d28ed6 [libcxx] Avoid overflows in the windows __libcpp_steady_clock_now() 
As freq.QuadValue can be in the range of 10000000 to 19200000,
the multiplication before division makes the calculation overflow
and wrap to negative values every 16-30 minutes.

Instead count the whole seconds separately before adding the
scaled fractional seconds.

Add a testcase for steady_clock to check that the values returned for
now() compare as bigger than the zero time origin; this
corresponds to a testcase in Qt [1] [2] (that failed spuriously
due to this).

[1] https://bugreports.qt.io/browse/QTBUG-89539
[2] https://code.qt.io/cgit/qt/qtbase.git/tree/tests/auto/corelib/kernel/qdeadlinetimer/tst_qdeadlinetimer.cpp?id=f8de5e54022b8b7471131b7ad55c83b69b2684c0#n569

Differential Revision: https://reviews.llvm.org/D93456
2021-01-12 23:56:03 +02:00
..
date.time
[libc++] NFC: Fix several GCC warnings in the test suite
2020-10-30 12:48:05 -04:00
time.cal
[libc++] [LWG3221] Add tests for wrapping operator+(year_month, months).
2020-12-08 18:08:04 +01:00
time.clock
[libcxx] Avoid overflows in the windows __libcpp_steady_clock_now()
2021-01-12 23:56:03 +02:00
time.clock.req
Support tests in freestanding
2019-02-04 20:31:13 +00:00
time.duration
[libc++] NFC: Fix several GCC warnings in the test suite
2020-10-30 12:48:05 -04:00
time.hms
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00
time.point
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00
time.traits
[libc++] Remove useless nothing_to_do.pass.cpp tests
2020-04-03 13:48:34 -04:00
clock.h
Update more file headers across all of the LLVM projects in the monorepo
2019-01-19 10:56:40 +00:00
days.pass.cpp
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00
hours.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
microseconds.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
milliseconds.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
minutes.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
months.pass.cpp
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00
nanoseconds.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
rep.h
Fix PR41130 - 'operator/ of std::chrono::duration and custom type'. Thanks to Zulan for the report, and Howard for the direction of the fix.
2019-04-01 16:38:02 +00:00
seconds.pass.cpp
Add include for 'test_macros.h' to all the tests that were missing them. Thanks to Zoe for the (big, but simple) patch. NFC intended.
2019-05-31 18:35:30 +00:00
weeks.pass.cpp
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00
years.pass.cpp
[libc++] Remove the c++98 Lit feature from the test suite
2020-06-03 09:37:22 -04:00