[#bsl-vector-0a0-reserve]
= xref:bsl.adoc[bsl]::xref:bsl/vector-0a0.adoc[vector<signed char>]::reserve
:relfileprefix: ../../
:mrdocs:

Change the capacity of this vector to the specified `newCapacity`. If an exception is thrown (other than by the move constructor of a non‐copy‐insertable `value_type`), `*this` is unaffected. Throw `bsl::length_error` if `newCapacity > max_size()`. This method requires that the (template parameter) type `VALUE_TYPE` be `move‐insertable` into this vector (see {Requirements on `VALUE_TYPE`}). Note that the capacity of this vector after this operation has completed may be greater than `newCapacity`.

== Synopsis

Declared in `<bslstl_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
reserve(xref:bsl/vector-0a0/size_type.adoc[size_type] newCapacity);
----


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