.TH "std::default_sentinel_t" 3cxx "libstdc++" \" -*- nroff -*-
.ad l
.nh
.SH NAME
std::default_sentinel_t
.SH SYNOPSIS
.br
.PP
.PP
\fC#include <iterator>\fP
.SH "Detailed Description"
.PP 
A sentinel type that can be used to check for the end of a range\&.
.PP
For some iterator types the past-the-end sentinel value is independent of the underlying sequence, and a default sentinel can be used with them\&. For example, a \fCstd::counted_iterator\fP keeps a count of how many elements remain, and so checking for the past-the-end value only requires checking if that count has reached zero\&. A past-the-end \fCstd::istream_iterator\fP is equal to the default-constructed value, which can be easily checked\&.
.PP
Comparing iterators of these types to \fCstd::default_sentinel\fP is a convenient way to check if the end has been reached\&.
.PP
\fBSince\fP
.RS 4
C++20 
.RE
.PP


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