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Avoid hidden <climits> dependency in <thread>
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Authored by joerg on May 27 2020, 5:26 PM.

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Summary

sleep_for tries to convert arbitrary durations toward nanosecond resolution in a way that avoids truncation. The nanosecond timer is declared using long long, but the minimum required size of 64bit signed is enough for all computation needs. Avoid doing a long double constexpr computation here as older GCC versions on PowerPC have problems folding the double-double type and also avoid the additional header include at the same time. The constant equals about 290 years and should be good enough.

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joerg created this revision.May 27 2020, 5:26 PM