.TH "__gnu_pbds::null_type" 3 "libstdc++" \" -*- nroff -*-
.ad l
.nh
.SH NAME
__gnu_pbds::null_type \- Represents no type, or absence of type, for template tricks\&.  

.SH SYNOPSIS
.br
.PP
.PP
\fR#include <tag_and_trait\&.hpp>\fP
.PP
Inherited by \fB__gnu_pbds::null_node_update< node_const_iterator, node_iterator, Cmp_Fn, _Alloc > *\fP, \fB__gnu_pbds::null_node_update< node_const_iterator, node_iterator, _ATraits, _Alloc > *\fP, \fB__gnu_pbds::null_node_update< node_const_iterator, node_const_iterator, _ATraits, _Alloc > *\fP, \fB__gnu_pbds::null_node_update< __it_type, __it_type, Cmp_Fn, _Alloc >\fP, and \fB__gnu_pbds::null_node_update< _Tp1, _Tp2, _Tp3, _Tp4 >\fP\&.
.SH "Detailed Description"
.PP 
Represents no type, or absence of type, for template tricks\&. 

In a mapped-policy, indicates that an associative container is a set\&.

.PP
In a list-update policy, indicates that each link does not need metadata\&.

.PP
In a hash policy, indicates that the combining hash function is actually a ranged hash function\&.

.PP
In a probe policy, indicates that the combining probe function is actually a ranged probe function\&. 

.SH "Author"
.PP 
Generated automatically by Doxygen for libstdc++ from the source code\&.