std::minus< void > Class Reference

Function object that can be invoked for subtraction, specialized for type deduction. More...

Public Types
using	first_argument_type
	Type of the first value to subtract.
using	is_transparent = void
	Denotes that this is a transparent function object type.
using	result_type
	Result type of invoking this object.
using	second_argument_type
	Type of the second value to subtract.

Public Member Functions
template<class T, class U>
constexpr auto	operator() (T &&lhs, U &&rhs) const noexcept(noexcept(std::forward< T >(std::declval< T & >()) - std::forward< U >(std::declval< U & >()))) ->
	Returns the first value minus the second value.
constexpr auto	operator() (void const &lhs, void const &rhs) const noexcept(noexcept(std::declval< void & >() - std::declval< void & >())) -> void
	Returns the first value minus the second value.
constexpr auto	operator() (void const &lhs, void const &rhs) const noexcept(noexcept(std::declval< void & >() - std::declval< void & >())) -> void
	Returns the first value minus the second value.

Detailed Description

Function object that can be invoked for subtraction, specialized for type deduction.

Member Typedef Documentation

first_argument_type

using std::minus< void >::first_argument_type

Type of the first value to subtract.

is_transparent

using std::minus< void >::is_transparent = void

Denotes that this is a transparent function object type.

result_type

using std::minus< void >::result_type

Result type of invoking this object.

second_argument_type

using std::minus< void >::second_argument_type

Type of the second value to subtract.

Member Function Documentation

operator()() [1/3]

template<class T, class U>

auto std::minus< void >::operator() ( T && lhs, U && rhs ) const ->

inlineconstexprnoexcept

Returns the first value minus the second value.

Template Parameters

T	The first type
U	The second type

Parameters

lhs	The first value to subtract
rhs	The second value to subtract

Returns

Returns the result of invoking operator- on lhs and rhs

operator()() [2/3]

auto std::minus< void >::operator() ( void const & lhs, void const & rhs ) const-> void

inlineconstexprnoexcept

Returns the first value minus the second value.

Template Parameters

U	Template parameter to enable constraints.

Parameters

lhs	The first value to subtract
rhs	The second value to subtract

Returns

Returns the result of invoking operator- on lhs and rhs

operator()() [3/3]

auto std::minus< void >::operator() ( void const & lhs, void const & rhs ) const-> void

inlineconstexprnoexcept

Returns the first value minus the second value.

Template Parameters

U	Template parameter to enable constraints.

Parameters

lhs	The first value to subtract
rhs	The second value to subtract

Returns

Returns the result of invoking operator- on lhs and rhs

Note

This overload explicitly casts the result of the computation to the type T. This avoids any warning for implicit conversion (present on gcc8).

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The documentation for this class was generated from the following file:

• stdlib/include/stdlib_detail/minus.hpp