std::modulus

C++

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

Function object for computing remainders of divisions. Implements operator% for type T.

Specializations

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

(since C++14)

Member types Type Definition result_type(deprecated in C++17) T first_argument_type(deprecated in C++17) T second_argument_type(deprecated in C++17) T

(until C++20)

Member functions

operator()

returns the remainder from the division of the first argument by the second argument (public member function)

std::modulus::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 remainder of the division of lhs by rhs.

Parameters

lhs, rhs

-

values to divide one by another

Return value

The result of lhs % rhs.

Exceptions

(none)

Possible implementation

constexpr T operator()(const T &lhs, const T &rhs) const { return lhs % rhs; }

See also

fmod	remainder of the floating point division operation (function)
remainder (C++11)	signed remainder of the division operation (function)