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

Converts a Duration to a floating‐point count of nanoseconds.

== Synopsis

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

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

== Description

Helper functions that convert a Duration to a floating point count of the indicated unit. These functions are shorthand for the `FDivDuration()` function above; see its documentation for details about overflow, etc.

Example:

absl::Duration d = absl::Milliseconds(1500); double dsec = absl::ToDoubleSeconds(d); // dsec == 1.5

== Return Value

The number of nanoseconds in `d`, including any fraction.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *d*
| The duration to convert.
|===


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