std::logical_or
From cppreference.com
< cpp | utility | functional
| Defined in header <functional>
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| template< class T > struct logical_or; |
(until C++14) | |
| template< class T = void > struct logical_or; |
(since C++14) | |
Function object for performing logical OR (logical disjunction). Effectively calls operator|| on 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)(removed in C++20)
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bool |
first_argument_type (deprecated in C++17)(removed in C++20)
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T
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second_argument_type (deprecated in C++17)(removed in C++20)
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T
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These member types are obtained via publicly inheriting std::binary_function<T, T, bool>. |
(until C++11) |
Member functions
| operator() |
returns the logical OR of the two arguments (public member function) |
std::logical_or::operator()
bool operator()( const T& lhs, const T& rhs ) const; |
(constexpr since C++14) | |
Returns the logical OR of lhs and rhs.
Parameters
| lhs, rhs | - | values to compute logical OR of |
Return value
The result of lhs || rhs.
Exceptions
May throw implementation-defined exceptions.
Possible implementation
constexpr bool operator()(const T& lhs, const T& rhs) const { return lhs || rhs; } |