[#bsl-vector-0cf-push_back-0b]
= xref:bsl.adoc[bsl]::xref:bsl/vector-0cf.adoc[vector<unsigned char>]::push_back
:relfileprefix: ../../
:mrdocs:

Append to the end of this vector a copy of the specified `value`. If an exception is thrown, `*this` is unaffected. Throw `std::length_error` if `size() == max_size()`. This method requires that the (template parameter) type `VALUE_TYPE` be `copy‐constructible` (see {Requirements on `VALUE_TYPE`}).

== Synopsis

Declared in `<bslstl_vector.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
push_back(unsigned char const& value);
----


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