reduce_sum()

template<typename ReduceFunction , typename Vec , typename = require_vector_like_t<Vec>, typename... Args>

auto stan::math::reduce_sum ( Vec &&  vmapped, int  grainsize, std::ostream *  msgs, Args &&...  args  )

inline

Call an instance of the function ReduceFunction on every element of an input sequence and sum these terms.

This defers to reduce_sum_impl for the appropriate implementation

ReduceFunction must define an operator() with the same signature as: T f(Vec&& vmapped_subset, int start, int end, std::ostream* msgs, Args&&... args)

ReduceFunction must be default constructible without any arguments

grainsize must be greater than or equal to 1

Template Parameters

ReduceFunction	Type of reducer function
ReturnType	An arithmetic type
Vec	Type of sliced argument
Args	Types of shared arguments

Parameters

	vmapped	Vector containing one element per term of sum
	grainsize	Suggested grainsize for tbb
[in,out]	msgs	The print stream for warning messages
	args	Shared arguments used in every sum term

Returns

Sum of terms

Definition at line 200 of file reduce_sum.hpp.