staticEval overload (4) - 2023.2 English

#include "xf_database/static_eval.hpp"

template <
    typename T1,
    typename T2,
    typename T3,
    typename T4,
    typename T_O,
    T_O(*)(T1, T2, T3, T4) opf
    >
void staticEval (
    hls::stream <T1>& in1_strm,
    hls::stream <T2>& in2_strm,
    hls::stream <T3>& in3_strm,
    hls::stream <T4>& in4_strm,
    hls::stream <bool>& e_in_strm,
    hls::stream <T_O>& out_strm,
    hls::stream <bool>& e_out_strm
    )

Four stream input static evaluation.

static_eval function calculate the experssion result that user defined. This result will be passed to aggregate module as the input. When calling this API, the T1 T2 T3 T_O are the input/output data types for each parameter of user code. E.g.

// decl
long user_func(int a, int b, int c, int d);
// use
 database::static_eval<int, int, int, int, long, user_func>(
  in1_strm, in2_strm, in3_strm, in3_strm, e_in_strm,
  out_strm, e_out_strm);

In the above call, four int are the data type of input of user_func , and long is the return type of user_func .

Parameters: