:relfileprefix: ../../../ [#boost-urls-ipv4_address-2constructor-06] == xref:boost.adoc[pass:[boost]]::xref:boost/urls.adoc[pass:[urls]]::xref:boost/urls/ipv4_address.adoc[pass:[ipv4_address]]::ipv4_address Construct from an unsigned integer. === Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- explicit ipv4_address(xref:boost/urls/ipv4_address/uint_type.adoc[uint_type] u) noexcept; ---- === Description This function constructs an address from the unsigned integer `u`, where the most significant byte forms the first octet of the resulting address. === Parameters |=== | Name | Description | *u* | The integer to construct from. |===