std::experimental::propagate_const::operator bool

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

Checks whether the wrapped pointer-like object, t_, is null.

(none)

true if the wrapped object is not null, otherwise false. Equivalent to (bool)t_.

Language
Standard library headers
Concepts
Utilities library
Strings library
Containers library
Algorithms library
Iterators library
Numerics library
Input/output library
Localizations library
Regular expressions library (C++11)
Atomic operations library (C++11)
Thread support library (C++11)
Filesystem library (C++17)
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)

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

Member functions
propagate_const::propagate_const
propagate_const::operator=
propagate_const::swap
Observers
propagate_const::get
propagate_const::operator bool
propagate_const::operator*propagate_const::operator->
propagate_const::operator element_typepropagate_const::operator const element_type
Non-member functions
operator==operator!=operator<operator>operator<=operator>operator>=
swap
get_underlying
Helper classes
std::hash
std::equal_tostd::not_equal_tostd::lessstd::greaterstd::less_equalstd::greater_equal