192 lines
6.2 KiB
Plaintext
192 lines
6.2 KiB
Plaintext
// time2_demo.output ----------------------------------------------------------//
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// Copyright 2008 Howard Hinnant
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// Copyright 2008 Beman Dawes
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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Running basic examples
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sleep_for 3000000 microseconds
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sleep_for 1 microseconds
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sleep_until 10:47:17.728293 which is 4499340 microseconds away
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try_lock_for 30000 microseconds
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try_lock_until 10:47:17.728285 which is 4499303 microseconds away
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wait_for 60000000 microseconds
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wait_until 10:47:17.728285 which is 4499264 microseconds away
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sleep_for 250000 microseconds
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sleep_until 10:47:14.729077 which is 1499979 microseconds away
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***************
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* testStdUser *
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***************
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100 hours expressed as hours = 100
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100 hours expressed as nanoseconds = 360000000000000
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200 hours expressed as nanoseconds = 720000000000000
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300 hours expressed as nanoseconds = 1080000000000000
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hr = ns; // does not compile
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hr * ns; // does not compile
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duration<double> has count() = 2.5
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seconds sec = duration<double> won't compile
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seconds has count() = 2
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*************
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* testUser1 *
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*************
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Speed = 24.5872 meters/sec
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Acceleration = 9.81456 meters/sec^2
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Distance = 13.5204 meters
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There are 125/201168 miles/meter which is approximately 0.000621371
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There are 201168/125 meters/mile which is approximately 1609.34
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1 attosecond is 1e-18 seconds
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sec = as; // compiles
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1 second is 1e+18 attoseconds
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as = sec; // compiles
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*************
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* testUser2 *
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*************
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100 years expressed as years = 100
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100 years expressed as nanoseconds = 3155695200000000000
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200 years expressed as nanoseconds = 6311390400000000000
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300 years expressed as nanoseconds = inf
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yr = ns; // does not compile
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ps = yr; // does not compile
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100 years expressed as picoseconds = inf
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0.1 years expressed as picoseconds = 3155695200000000000
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200 million years ago encoded in years: -200000000
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200 million years ago encoded in days: -73048500000
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200 million years ago encoded in millennium: -200000
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Demonstrate "uninitialized protection" behavior:
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nan
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d = 3e-09
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d = 10800
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d = 0.666667
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d = 10799.999999997
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292 years of hours = 2559672hr
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Add a nanosecond = 9214819200000000001ns
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Find the difference = 1ns
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244,000 years of hours = 2138904000hr
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Add a microsecond = 7700054400000000001us
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Find the difference = 1us
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********* nanoseconds *********
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The period of nanoseconds is 1e-09 seconds.
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The frequency of nanoseconds is 1e+09 Hz.
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The representation is integral
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The precision is 1e-09 seconds.
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The range is +/- 292.277 years.
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sizeof(nanoseconds) = 8
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********* microseconds *********
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The period of microseconds is 1e-06 seconds.
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The frequency of microseconds is 1e+06 Hz.
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The representation is integral
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The precision is 1e-06 seconds.
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The range is +/- 292277 years.
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sizeof(microseconds) = 8
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********* milliseconds *********
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The period of milliseconds is 0.001 seconds.
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The frequency of milliseconds is 1000 Hz.
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The representation is integral
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The precision is 0.001 seconds.
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The range is +/- 2.92277e+08 years.
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sizeof(milliseconds) = 8
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********* seconds *********
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The period of seconds is 1 seconds.
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The frequency of seconds is 1 Hz.
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The representation is integral
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The precision is 1 seconds.
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The range is +/- 2.92277e+11 years.
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sizeof(seconds) = 8
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********* minutes *********
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The period of minutes is 60 seconds.
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The frequency of minutes is 0.0166667 Hz.
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The representation is integral
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The precision is 60 seconds.
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The range is +/- 4083.06 years.
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sizeof(minutes) = 4
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********* hours *********
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The period of hours is 3600 seconds.
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The frequency of hours is 0.000277778 Hz.
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The representation is integral
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The precision is 3600 seconds.
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The range is +/- 244984 years.
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sizeof(hours) = 4
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********* duration<double> *********
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The period of duration<double> is 1 seconds.
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The frequency of duration<double> is 1 Hz.
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The representation is floating point
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The precision is the most significant 15 decimal digits.
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The range is +/- 5.69666e+300 years.
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sizeof(duration<double>) = 8
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success
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test_with_xtime
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{3,251000}
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3251 milliseconds
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{3,251000}
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{3,0}
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{3,1}
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system_clock test
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paused 5001000 nanoseconds
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system_clock resolution estimate: 0 nanoseconds
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monotonic_clock test
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paused 5000181 nanoseconds
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monotonic_clock resolution estimate: 97 nanoseconds
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high_resolution_clock test
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paused 5000277 nanoseconds
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high_resolution_clock resolution estimate: 96 nanoseconds
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mixed clock test
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Add 5 milliseconds to a high_resolution_clock::time_point
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Subtracting system_clock::time_point from monotonic_clock::time_point doesn't compile
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subtract high_resolution_clock::time_point from monotonic_clock::time_point and add that to a system_clock::time_point
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subtract two system_clock::time_point's and output that in microseconds:
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5000 microseconds
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timeval_demo system clock test
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sizeof xtime_clock::time_point = 8
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sizeof xtime_clock::duration = 8
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sizeof xtime_clock::rep = 8
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paused 5001000 nanoseconds
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runtime_resolution test
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paused 5000205 nanoseconds
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C map test
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It is now 10:47:13 2008-4-22
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Round-tripping through the C interface truncated the precision by 255445 microseconds
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2160000
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0
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3600000
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0
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2999998997 * 1/1000000000 seconds
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0 * 1/1000000000 seconds
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15778476000000000 microseconds
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paused 5001000 nanoseconds
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********* milliseconds(3) * 2.5 *********
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The period of milliseconds(3) * 2.5 is 0.001 seconds.
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The frequency of milliseconds(3) * 2.5 is 1000 Hz.
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The representation is floating point
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The precision is the most significant 15 decimal digits.
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The range is +/- 5.69666e+297 years.
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sizeof(milliseconds(3) * 2.5) = 8
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7.5
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milliseconds ms(3.5) doesn't compile
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Simulated 400MHz clock which has a tick period of 2.5 nanoseconds
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delay = 500 nanoseconds which is 200 cycles
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paused 201 cycles which is 502 nanoseconds
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Simulated 400MHz clock modeled with nanoseconds
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delay = 500 nanoseconds
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paused 503 nanoseconds
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Simulated 1500MHz clock which has a tick period of 0.666667 nanoseconds
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delay = 500 nanoseconds which is 750 cycles
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paused 751 cycles which is 500 nanoseconds
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Simulated 1500MHz clock modeled with nanoseconds
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delay = 500 nanoseconds
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paused 500 nanoseconds
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duration<unsigned>::min().count() = 0
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duration<unsigned>::zero().count() = 0
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duration<unsigned>::max().count() = 4294967295
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duration<int>::min().count() = -2147483647
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duration<int>::zero().count() = 0
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duration<int>::max().count() = 2147483647
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