[#absl-InfiniteDuration]
= xref:absl.adoc[absl]::InfiniteDuration
:relfileprefix: ../
:mrdocs:

Returns an infinite `Duration`. To get a `Duration` representing negative infinity, use `‐InfiniteDuration()`.

== Synopsis

Declared in `<absl/time/time.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
xref:absl/Duration.adoc[Duration]
InfiniteDuration();
----

== Description

Duration arithmetic overflows to +/‐ infinity and saturates. In general, arithmetic with `Duration` infinities is similar to IEEE 754 infinities except where IEEE 754 NaN would be involved, in which case +/‐ `InfiniteDuration()` is used in place of a "nan" Duration.

Examples:

constexpr absl::Duration inf = absl::InfiniteDuration(); const absl::Duration d = ... any finite duration ...

inf == inf + inf inf == inf + d inf == inf ‐ inf ‐inf == d ‐ inf

inf == d * 1e100 inf == inf / 2 0 == d / inf INT64_MAX == inf / d

d < inf ‐inf < d

// Division by zero returns infinity, or INT64_MIN/MAX where appropriate. inf == d / 0 INT64_MAX == d / absl::ZeroDuration()

The examples involving the `/` operator above also apply to `IDivDuration()` and `FDivDuration()`.

== Return Value

An infinite duration.


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