frac_tree_p.cpp

科学运算语言 MATLAB 的程序设计有关的函数代码

//
// MATLAB Compiler: 2.0
// Date: Tue Apr 18 10:30:35 2000
// Arguments: "-p" "frac_tree_p.m" 
//
#include "frac_tree_p.hpp"

//
// The function "Mfrac_tree_p" is the implementation version of the
// "frac_tree_p" M-function from file
// "C:\Xue.Dy\BOOKS\MATLAB\mat5progs\mat5files\frac_tree_p.m" (lines 1-15). It
// contains the actual compiled code for that M-function. It is a static
// function and must only be called from one of the interface functions,
// appearing below.
//
//
// function frac_tree_s()
//
static void Mfrac_tree_p() {
    mwArray N(mclGetUninitializedArray());
    mwArray i(mclGetUninitializedArray());
    mwForLoopIterator iterator_0;
    mwArray v(mclGetUninitializedArray());
    mwArray vv(mclGetUninitializedArray());
    mwArray x(mclGetUninitializedArray());
    mwArray x0(mclGetUninitializedArray());
    mwArray y(mclGetUninitializedArray());
    mwArray y0(mclGetUninitializedArray());
    //
    // x0=0; y0=0; N=1000000; v=rand(N,1);
    //
    x0 = 0.0;
    y0 = 0.0;
    N = 1000000.0;
    v = rand_func(mwVarargin(N, 1.0));
    //
    // x=[x0; zeros(N-1,1)]; y=[y0; zeros(N-1,1)];
    //
    x
      = vertcat(
          mwVarargin(
            horzcat(mwVarargin(x0)),
            horzcat(mwVarargin(zeros(mwVarargin(N - mwArray(1.0), 1.0))))));
    y
      = vertcat(
          mwVarargin(
            horzcat(mwVarargin(y0)),
            horzcat(mwVarargin(zeros(mwVarargin(N - mwArray(1.0), 1.0))))));
    //
    // for i=2:N
    //
    for (iterator_0.Start(2.0, N, mwArray::DIN); iterator_0.Next(&i); ) {
        //
        // vv=v(i);
        //
        vv = v(i);
        //
        // if vv<0.05, y(i)=0.5*y(i-1);   
        //
        if (tobool(vv < mwArray(0.05))) {
            y(i) = mwArray(0.5) * y(i - mwArray(1.0));
        //
        // elseif vv<0.45, 
        //
        } else if (tobool(vv < mwArray(0.45))) {
            //
            // x(i)=0.42*(x(i-1)-y(i-1)); y(i)=0.2+0.42*(x(i-1)+y(i-1));
            //
            x(i) = mwArray(0.42) * (x(i - mwArray(1.0)) - y(i - mwArray(1.0)));
            y(i)
            = mwArray(0.2)
              + mwArray(0.42) * (x(i - mwArray(1.0)) + y(i - mwArray(1.0)));
        //
        // elseif vv<0.85, 
        //
        } else if (tobool(vv < mwArray(0.85))) {
            //
            // x(i)=0.42*(x(i-1)+y(i-1)); y(i)=0.2-0.42*(x(i-1)-y(i-1));   
            //
            x(i) = mwArray(0.42) * (x(i - mwArray(1.0)) + y(i - mwArray(1.0)));
            y(i)
            = mwArray(0.2)
              - mwArray(0.42) * (x(i - mwArray(1.0)) - y(i - mwArray(1.0)));
        //
        // else, 
        //
        } else {
            //
            // x(i)=0.1*x(i-1); y(i)=0.1*y(i-1)+0.2;
            //
            x(i) = mwArray(0.1) * x(i - mwArray(1.0));
            y(i) = mwArray(0.1) * y(i - mwArray(1.0)) + mwArray(0.2);
        //
        // end
        //
        }
    //
    // end
    //
    }
}

//
// The function "frac_tree_p" contains the normal interface for the
// "frac_tree_p" M-function from file
// "C:\Xue.Dy\BOOKS\MATLAB\mat5progs\mat5files\frac_tree_p.m" (lines 1-15).
// This function processes any input arguments and passes them to the
// implementation version of the function, appearing above.
//
void frac_tree_p() {
    Mfrac_tree_p();
}

//
// The function "mlxFrac_tree_p" contains the feval interface for the
// "frac_tree_p" M-function from file
// "C:\Xue.Dy\BOOKS\MATLAB\mat5progs\mat5files\frac_tree_p.m" (lines 1-15). The
// feval function calls the implementation version of frac_tree_p through this
// function. This function processes any input arguments and passes them to the
// implementation version of the function, appearing above.
//
void mlxFrac_tree_p(int nlhs, mxArray * plhs[], int nrhs, mxArray * prhs[]) {
    MW_BEGIN_MLX();
    {
        if (nlhs > 0) {
            error(
              "Run-time Error: File: frac_tree_p Line: 1 Column"
              ": 0 The function \"frac_tree_p\" was called with"
              " more than the declared number of outputs (0)");
        }
        if (nrhs > 0) {
            error(
              "Run-time Error: File: frac_tree_p Line: 1 Column"
              ": 0 The function \"frac_tree_p\" was called with"
              " more than the declared number of inputs (0)");
        }
        Mfrac_tree_p();
    }
    MW_END_MLX();
}