template<class Base >

struct_size_pair CppAD::local::optimize::record_csum	(	const player< Base > *	play,
		const vector< struct_opt_op_info > &	opt_op_info,
		const CppAD::vector< struct struct_old2new > &	old2new,
		size_t	current,
		recorder< Base > *	rec,
		struct_csum_stacks &	work
	)

Recording a cummulative cummulative summation.

Parameters

play	player object corresponding to the old recroding.
opt_op_info	mapping from old index to operator index to operator information
old2new	mapping from old operator index to information about the new recording.
current	is the index in the old operation sequence for the variable corresponding to the result for the current operator. We use the notation i_op = play->var2op(current). It follows that NumRes( opt_op_info[i_op].op ) > 0. If 0 < j_op < i_op, either opt_op_info[j_op].usage == csum_usage, opt_op_info[j_op].usage = no_usage, or old2new[j_op].new_var != 0.
rec	is the object that will record the new operations.

Returns

is the operator and variable indices in the new operation sequence.

Parameters

work	Is temporary work space. On input and output, work.op_stack, work.add_stack, and work.sub_stack, are all empty. These stacks are passed in so that they are created once and then be reused with calls to record_csum.

Assumptions

opt_op_info[i_o].op must be one of AddpvOp, AddvvOp, SubpvOp, SubvpOp, SubvvOp. opt_op_info[i_op].usage != no_usage and ! opt_op_info[i_op].usage == csum_usage. Furthermore opt_op_info[j_op].usage == csum_usage is true from some j_op that corresponds to a variable that is an argument to opt_op_info[i_op].

Definition at line 63 of file record_csum.hpp.

Referenced by optimize_run().