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C
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assert
C Date and time utilities
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FLT_EVAL_METHOD
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operators (std::bitset)
operators (std::bitset)
operators (std::bitset)
operators (std::chrono::duration)
operators (std::chrono::duration)
operators (std::error_condition)
operators (std::function)
operators (std::optional)
operators (std::pair)
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operators (std::time_point)
operators (std::tuple)
operators (std::unique_ptr)
operators (std::variant)
Program support utilities
setjmp
SIGABRT
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std::abort
std::addressof
std::add_const
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std::add_lvalue_reference
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std::align
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std::aligned_storage
std::aligned_union
std::alignment_of
std::align_val_t
std::allocate_shared
std::allocator_arg
std::allocator_arg_t
std::any
std::any::any
std::any::emplace
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std::any::reset
std::any::swap
std::any::type
std::any_cast
std::apply
std::asctime
std::as_const
std::atexit
std::atomic_...<std::shared_ptr>
std::at_quick_exit
std::auto_ptr
std::auto_ptr::auto_ptr
std::auto_ptr::get
std::auto_ptr::operator auto_ptr<Y>
std::auto_ptr::operator->
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std::auto_ptr::release
std::auto_ptr::reset
std::bad_alloc
std::bad_any_cast
std::bad_array_new_length
std::bad_array_new_length::bad_array_new_length
std::bad_cast
std::bad_cast::bad_cast
std::bad_exception
std::bad_exception::bad_exception
std::bad_exception::what
std::bad_function_call
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std::bad_typeid
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std::bad_variant_access
std::bad_weak_ptr
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std::begin(std::initializer_list)
std::binary_function
std::binary_negate
std::bind
std::bind1st
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std::binder1st
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std::bitset
std::bitset::all
std::bitset::any
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std::bitset::flip
std::bitset::none
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std::bitset::operators
std::bitset::operator[]
std::bitset::reference
std::bitset::reset
std::bitset::set
std::bitset::size
std::bitset::test
std::bitset::to_string
std::bitset::to_ullong
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std::bit_and
std::bit_and<void>
std::bit_not
std::bit_not<void>
std::bit_or
std::bit_or<void>
std::bit_xor
std::bit_xor<void>
std::boyer_moore_horspool_searcher
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std::byte
std::calloc
std::chars_format
std::chrono::abs(std::chrono::duration)
std::chrono::ceil(std::chrono::duration)
std::chrono::ceil(std::chrono::time_point)
std::chrono::duration
std::chrono::duration::count
std::chrono::duration::duration
std::chrono::duration::max
std::chrono::duration::min
std::chrono::duration::operator-
std::chrono::duration::operator--
std::chrono::duration::operators
std::chrono::duration::operators (%=)
std::chrono::duration::operators (unary)
std::chrono::duration::zero
std::chrono::duration_cast
std::chrono::duration_values
std::chrono::duration_values::max
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std::chrono::floor(std::chrono::duration)
std::chrono::floor(std::chrono::time_point)
std::chrono::high_resolution_clock
std::chrono::high_resolution_clock::now
std::chrono::round(std::chrono::duration)
std::chrono::round(std::chrono::time_point)
std::chrono::steady_clock
std::chrono::steady_clock::now
std::chrono::system_clock
std::chrono::system_clock::from_time_t
std::chrono::system_clock::now
std::chrono::system_clock::to_time_t
std::chrono::time_point
std::chrono::time_point::max
std::chrono::time_point::min
std::chrono::time_point::operators (operator-)
std::chrono::time_point::time_point
std::chrono::time_point::time_since_epoch
std::chrono::time_point_cast
std::chrono::treat_as_floating_point
std::clock
std::clock_t
std::common_type
std::common_type(std::chrono::duration)
std::common_type(std::chrono::time_point)
std::conditional
std::conjunction
std::const_mem_fun1_ref_t
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std::const_mem_fun_ref_t
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std::const_pointer_cast
std::cref
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std::default_delete
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std::equal_to
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std::exchange
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std::forward
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std::free
std::from_chars
std::function
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std::function::function
std::function::operator bool
std::function::swap
std::function::target
std::function::target_type
std::generic_category
std::get
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std::getenv
std::get_deleter
std::get_if
std::get_new_handler
std::get_pointer_safety
std::get_temporary_buffer
std::get_terminate
std::get_unexpected
std::gmtime
std::greater
std::greater<void>
std::greater_equal
std::greater_equal<void>
std::hash
std::hash
std::hash <std::optional>
std::hash <std::unique_ptr>
std::hash <std::variant>
std::hash(std::shared_ptr)
std::hash::hash
std::hash<std::error_code>
std::hash<std::error_condition>
std::hash<std::type_index>
std::has_unique_object_representations
std::has_virtual_destructor
std::holds_alternative
std::ignore
std::initializer_list
std::initializer_list::begin
std::initializer_list::end
std::initializer_list::initializer_list
std::initializer_list::size
std::integer_sequence
std::integral_constant
std::invalid_argument
std::invoke
std::invoke_result
std::in_place
std::in_place_index
std::in_place_index_t
std::in_place_t
std::in_place_t
std::in_place_type
std::in_place_type_t
std::is_abstract
std::is_aggregate
std::is_arithmetic
std::is_array
std::is_assignable
std::is_base_of
std::is_bind_expression
std::is_class
std::is_compound
std::is_const
std::is_constructible
std::is_convertible
std::is_copy_assignable
std::is_copy_constructible
std::is_default_constructible
std::is_destructible
std::is_empty
std::is_enum
std::is_error_code_enum
std::is_error_code_enum<std::future_errc>
std::is_error_condition_enum
std::is_error_condition_enum<std::errc>
std::is_final
std::is_floating_point
std::is_function
std::is_fundamental
std::is_integral
std::is_invocable
std::is_invocable_r
std::is_literal_type
std::is_lvalue_reference
std::is_member_function_pointer
std::is_member_object_pointer
std::is_member_pointer
std::is_move_assignable
std::is_move_constructible
std::is_nothrow_assignable
std::is_nothrow_constructible
std::is_nothrow_copy_assignable
std::is_nothrow_copy_constructible
std::is_nothrow_default_constructible
std::is_nothrow_destructible
std::is_nothrow_invocable
std::is_nothrow_invocable_r
std::is_nothrow_move_assignable
std::is_nothrow_move_constructible
std::is_nothrow_swappable
std::is_nothrow_swappable_with
std::is_null_pointer
std::is_object
std::is_placeholder
std::is_pod
std::is_pointer
std::is_polymorphic
std::is_reference
std::is_rvalue_reference
std::is_same
std::is_scalar
std::is_signed
std::is_standard_layout
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std::is_swappable_with
std::is_trivial
std::is_trivially_assignable
std::is_trivially_constructible
std::is_trivially_copyable
std::is_trivially_copy_assignable
std::is_trivially_copy_constructible
std::is_trivially_default_constructible
std::is_trivially_destructible
std::is_trivially_move_assignable
std::is_trivially_move_constructible
std::is_union
std::is_unsigned
std::is_void
std::is_volatile
std::jmp_buf
std::launder
std::length_error
std::less
std::less<void>
std::less_equal
std::less_equal<void>
std::literals::chrono_literals::operator""h
std::literals::chrono_literals::operator""min
std::literals::chrono_literals::operator""ms
std::literals::chrono_literals::operator""ns
std::literals::chrono_literals::operator""s
std::literals::chrono_literals::operator""us
std::localtime
std::logical_and
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std::logical_not
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std::logical_or
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std::logic_error
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std::make_error_condition(std::errc)
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std::make_from_tuple
std::make_optional
std::make_pair
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std::make_unsigned
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std::monostate
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std::numeric_limits::max_exponent10
std::numeric_limits::min
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std::runtime_error
std::set_new_handler
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std::set_unexpected
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std::shared_ptr::operator<<
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std::shared_ptr::operators (>=)
std::shared_ptr::operator[]
std::shared_ptr::owner_before
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std::shared_ptr::shared_ptr
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std::shared_ptr::unique
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std::signal
std::sig_atomic_t
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std::static_pointer_cast
std::strftime
std::swap(std::any)
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std::swap(std::optional)
std::swap(std::pair)
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std::swap(std::unique_ptr)
std::swap(std::variant)
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std::system_error::system_error
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std::terminate
std::terminate_handler
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std::tie
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std::plus

STD：+

Defined in header ​​
template< class T > struct plus;​(until C++14)
template< class T = void > struct plus;​(since C++14)

函数对象，用于执行加法。有效呼叫operator+关于类型的两个实例T...

专门性

The standard library provides a specialization of std::plus when T is not specified, which leaves the parameter types and return type to be deduced. plus function object implementing x + y deducing argument and return types (class template specialization)plusfunction object implementing x + y deducing argument and return types (class template specialization)(since C++14)
plus<void>function object implementing x + y deducing argument and return types (class template specialization)

成员类型

TypeDefinition
result_type(deprecated in C++17)T
first_argument_type(deprecated in C++17)T
second_argument_type(deprecated in C++17)T

成员函数

operator()returns the sum of two arguments (public member function)

+：：操作员%28%29

T operator()( const T& lhs, const T& rhs ) const;​(until C++14)
constexpr T operator()( const T& lhs, const T& rhs ) const;​(since C++14)

返回的和lhs和rhs...

参数

lhs, rhs-values to sum

返回值

结果lhs + rhs...

例外

%280%29

可能的实施

ConstT算子%28%29%28 const T&lhs，const T&rhs%29 const{返回lhs+rhs；}

*。

 © cppreference.com

在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cppreference.com/w/cpp/实用程序/Functional/plus

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