C++ Ranges::dangling, sized_range, disable_sized range Introduction














































C++ Ranges::dangling, sized_range, disable_sized range Introduction



In this series of articles on RANGES with C++, today we are going to see libraries of std::ranges::dangling , std::ranges::sized range and std::ranges::disable_sized range
____________________________________________________________________________________

INTRODUCTION to RANGES LIBRARY HAS BEEN DONE IN MY FIRST ARTICLE OF RANGES LIBRARY

All the libraries defined below are included in the header <ranger> and <iterator>.


std::ranges::dangling


It is a  wrapper for an iterator into a range that may no longer be valid/dangling.

It indicates that an iterator/subrange should not return as it would be dangling.


Public Member Functions of dangling library are::

1.constexpr  dangling (I it)    Implicit converting constructor.
 
2.constexpr I get_unsafe () constant (get_unsafe() returns the iterator from which this dangling object was constructed.)

std::ranges::sized range

It specifies the requirements of a range type that knows its size in constant time with the size function.

std::ranges::disable_sized range

It allows use of range types that provide a size function  but do not model size_range.
However,
 It cannot be used to opt out a range whose iterator and sentinel satisfy sized_sentinel_for:


More Articles of Harshit Jain:

Name Views Likes
C++ Ranges::all_view, begin, cbegin Introduction 455 1
C++ future library Intorduction 576 1
C++ Ranges :: ViewableRange, ref_view, reverse_view 536 1
Threads Stop_token library C++ 593 1
C++ cfenv(Numerics Library) Introduction 424 1
YAML CPP Introduction 3600 1
Thead Library C++ Introduction 387 1
Introduction to gSOAP library 554 1
C++ ranges::ForwardRange, InputRange, OutputRange Introduction 566 1
Shared Mutex C++ Introduction 2038 1
SEMAPHORE HEADER C++(MULTI_THREADING) Introduction 1740 1
C++ Ranges::dangling, sized_range, disable_sized range Introduction 358 1
C++ Ranges::views::empty, filter, reverse, iota and Ranges::iota_view Introduction 593 1
MyCSS ( a CSS parser ) Introduction 371 1
C++ ranges::view::VIEW, ALL, COUNTED Introductiion 434 1
Mutex Locks C++ Multithreading Introduction 596 1
C++ Ranges:: Range, RandomAccessRange Introduction 359 1
Condition Variable(Multithreading) C++ Introduction 1724 1
Cpp - toml++ introduction 418 1
C++ Ranges::iterator_t, safe_iterator_t, safe_subrange_t Introduction 278 1
C++ Ranges::empty_view , enable_view, filter_view Introduction 463 1
C++ Barriers(Multithreading) Introduction 2321 1
LATCHES C++ Introduction 791 1
C++ Ranges::bidirectional_range, commom_range, contiguous range Introduction 360 1
C++ ZeroMQ - Introduction 1843 1
C++ BIT Library Introduction 375 1

Comments