1 2 | template < class T >
struct multiplies;
|
| | (until C++14) |
1 2 | template < class T = void >
struct multiplies;
|
| | (since C++14) |
Function object for performing multiplication. Effectively calls operator*
on two instances of type T
.
Specializations
The standard library provides a specialization of std::multiplies when T is not specified, which leaves the parameter types and return type to be deduced.
| function object implementing x * y deducing argument and return types (class template specialization) |
| (since C++14) |
Member types
Type | Definition |
---|
result_type | T |
first_argument_type | T |
second_argument_type | T |
Member functions
| returns the product of two arguments (public member function) |
std::multiplies::operator()
1 | T operator()( const T& lhs, const T& rhs ) const ;
|
| | (until C++14) |
1 | constexpr T operator()( const T& lhs, const T& rhs ) const ;
|
| | (since C++14) |
Returns the product of lhs
and rhs
.
Parameters
lhs, rhs | - | values to multiply |
Return value
The result of lhs * rhs
.
Exceptions
(none).
Possible implementation
1 2 3 4 | constexpr T operator()( const T &lhs, const T &rhs) const
{
return lhs * rhs;
}
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