:relfileprefix: ../../ [#std-hash-04-operator_call] = xref:std.adoc[pass:[std]]::xref:std/hash-04.adoc[pass:[hash]]::operator() == Synopsis Declared in header `` [source,cpp,subs="verbatim,macros,-callouts"] ---- xref:std.adoc[std]::size_t operator()(xref:boost.adoc[boost]::xref:boost/urls.adoc[urls]::xref:boost/urls/url.adoc[url] const& u) const noexcept; ----