std::experimental::observer_ptr::operator bool

 

C++

Language

Standard library headers

Concepts

Utilities library

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Technical Specifications

 

Technical specifications

Filesystem library (filesystem TS)

Library fundamentals (library fundamentals TS)

Library fundamentals 2 (library fundamentals 2 TS)

Extensions for parallelism (parallelism TS)

Extensions for concurrency (concurrency TS)

Concepts (concepts TS)

Ranges (ranges TS)

Special mathematical functions (special math TR)

 

Library fundamentals v2

experimental::propagate_const

experimental::not_fn

experimental::observer_ptr

experimental::make_array

experimental::to_array

experimental::ostream_joiner

experimental::gcd

experimental::lcm

experimental::source_location

experimental::randint

detection idiom

uniform container erasure

logical operator type traits

 

std::experimental::observer_ptr

Member functions

observer_ptr::observer_ptr

Modifiers

observer_ptr::release

observer_ptr::reset

observer_ptr::swap

Observers

observer_ptr::get

observer_ptr::operator bool

observer_ptr::operator*observer_ptr::operator->

Conversions

observer_ptr::operator element_type*

Non-member functions

make_observer

operator==operator!=operator<operator>operator<=operator>operator>=

swap

std::hash

 

constexpr explicit operator bool() const;		(library fundamentals TS v2)

Checks whether *this has an associated watched object, i.e. whether get() != nullptr.

Parameters

(none)

Return value

true if *this has an associated watched object, false otherwise.

Exceptions

noexcept specification:  

noexcept

  

See also

get	returns a pointer to the watched object (public member function)