:relfileprefix: ../../../
[#boost-urls-ipv6_address-max_str_len]

== xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/ipv6_address.adoc[pass:[ipv6_address]]::max_str_len


The number of characters in the longest possible IPv6 string.


=== Synopsis

Declared in header `<https://www.github.com/boostorg/url/blob/develop/include/boost/url/ipv6_address.hpp#L81[boost/url/ipv6_address.hpp,window=blank_]>`

[source,cpp,subs="verbatim,macros,-callouts"]
----
constexpr
static
std::size_t const max_str_len = 49;
----

=== Description


The longest IPv6 address is:
[,cpp]
----
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
----



=== See Also


xref:boost/urls/ipv6_address/to_buffer.adoc[to_buffer]
.