/* F01FJ_P0W_F C++ Header Example Program.
 *
 * Copyright 2019 Numerical Algorithms Group.
 * Mark 27, 2019.
 */

#include <nag.h>
#include <nagx04.h>
#include <nagad.h>
#include <stdio.h>
#include <string>
#include <iostream>
using namespace std;

int main(void)
{
  int       exit_status = 0;
  void      *ad_handle = 0;
  Integer   ifail = 0;

  cout << "F01FJ_P0W_F C++ Header Example Program Results\n\n";
  // Skip heading in data file
  string mystr;
  getline (cin, mystr);

  // Read problem size and number of right-hand-sides 
  Integer n;
  cin >> n;

  // Allocate arrays containing A and its factorized form, B
  // and the solution X.
  Complex *a=0;
  a    =  new Complex [n*n];  
  
  // Read the matrix A, register and copy
  double dr, di;
  for (int i = 0; i<n; ++i) {
    for (int j = 0; j<n; ++j) {
      cin >> dr >> di;
      Integer k = i + j*n;
      a[k].re = dr;
      a[k].im = di;
    }
  }

  // Find log(A)
  ifail = 0;
  f01fj_p0w_f_(ad_handle,n,a,n,ifail);

  // Print log(A)
  cout << endl;
  NagError  fail;
  INIT_FAIL(fail);
  x04dac(Nag_ColMajor,Nag_GeneralMatrix,Nag_NonUnitDiag,n,n,a,n,
         "  Log(A)",0,&fail);

  delete [] a;

  return exit_status;
}