std::plus
From cppreference.com
< cpp | utility | functional
| Defined in header <functional>
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| template< class T > struct plus; |
(until C++14) | |
| template< class T = void > struct plus; |
(since C++14) | |
Function object for performing addition. Effectively calls operator+ on two instances of type T.
Specializations
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The standard library provides a specialization of
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(since C++14) |
Member types
| Type | Definition |
result_type(deprecated in C++17)
|
T
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first_argument_type(deprecated in C++17)
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T
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second_argument_type(deprecated in C++17)
|
T
|
Member functions
| operator() |
returns the sum of two arguments (public member function) |
std::plus::operator()
| 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) | |
Returns the sum of lhs and rhs.
Parameters
| lhs, rhs | - | values to sum |
Return value
The result of lhs + rhs.
Exceptions
(none)
Possible implementation
constexpr T operator()(const T &lhs, const T &rhs) const { return lhs + rhs; } |