[#prevector-0c-reserve]
= xref:prevector-0c.adoc[prevector]::reserve
:relfileprefix: ../
:mrdocs:

Ensures capacity for at least `new_capacity` elements without changing the size.

== Synopsis

Declared in `<prevector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
reserve(xref:prevector-0c/size_type.adoc[size_type] new_capacity);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *new_capacity*
| The minimum capacity to guarantee.
|===


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