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Marc Alexander Lehmann 12 years ago
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      ev.pod

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ev.pod

@ -4639,11 +4639,11 @@ watchers.
=item C<double> must hold a time value in seconds with enough accuracy
The type C<double> is used to represent timestamps. It is required to
have at least 51 bits of mantissa (and 9 bits of exponent), which is good
enough for at least into the year 4000. This requirement is fulfilled by
implementations implementing IEEE 754, which is basically all existing
ones. With IEEE 754 doubles, you get microsecond accuracy until at least
2200.
have at least 51 bits of mantissa (and 9 bits of exponent), which is
good enough for at least into the year 4000 with millisecond accuracy
(the design goal for libev). This requirement is overfulfilled by
implementations using IEEE 754, which is basically all existing ones. With
IEEE 754 doubles, you get microsecond accuracy until at least 2200.
=back

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