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Filling the class from values taken from user input

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Old 05-09-2012
Filling the class from values taken from user input
I have a program that accepts user input. For example I have mdacc that the user sets the value. I then have a class which stores the value set by the user. I use set_param to set the values in the class. I pass through it the list of user defines arguments from argv. What would be the opinion on this way of programming? I was thinking of getting all arguments in the main program rather than as below

So my question is: How can a use classes and user input in the main program?

Code:
int  main(
  int  argc,
  char*  argv[] ) {

  if (argc < 2) {                                    // Print documentation
      FILE*  pipe;
      const char**  ptr = DOC;
      pipe = popen("more", "w");
      while (*ptr) { (void) fprintf(pipe, "%s\n", *ptr++); }
      pclose(pipe);
      exit(1);
  }

  String  S;
  Parsing  Pc(argc, argv);


// -- Set Output Verbosity Level -------------------------------------------------------------------
  Verbose  Vrb;
  if (Pc.GetString("VRB", S)) {
      S.ToUpper();
      if ( !GetVerbose(S, Vrb) ) { error("Bad VRB parameter"); }
  } else {
      Vrb = none;
  }

  bool  Bayes = true;
  if ( Pc.GetString( "INVTYPE", S ) ) {
    S.ToUpper();
    if ( S == "Std" ) {
        Bayes = false;
    } else if ( S == "Bayes" ) {
        Bayes = true;
    } else  {
        error ( "Bad INVTYPE parameter" );
    }
    if ( Vrb >= medium ) { cerr << "Tdarwin.cc, InvType = " << S << endl; }
  }

  ModMisfit  M;
  M.SetBayes(Bayes);
  M.SetParam(Pc);


...

Code:
#ifndef __MODMISFIT_HH__
#define __MODMISFIT_HH__
#include "source.hh"
#include "velmod.hh"
#include "objfunc.hh"
#include "parsing.hh"
#include "verbose.hh"
#include "common.hh"

class ModMisfit {

protected:
  static const Real    dtmin_default;
  static const Real    sigma_default;
  static const Real    beta_default;
  static const double  dang_default;
  static const bool    search_headwaves_default;

  int     nphases;
  int     nsources;
  double  dangsh;
  int     itermax;
  Real    mdacc;
  Real    mindist;
  Real    dtmin;
  Real    sigma;
  Real    beta;
  bool    search_headwaves;
  bool    extrap;
  Source**     sources;
  List<int>    ds;
  List<int>    dp;
  List<Real>   x;
  List<Real>   t1;
  List<Real>   t2;
  List<Phase>  ph;
  Verbose      vblevel;

public:

 ModMisfit():                         //
    mindist( -1 ),
    mdacc( -1 ),
    itermax( -1 ),
    dangsh( dang_default ),
    search_headwaves( search_headwaves_default ),
    extrap( true ),
    dtmin( dtmin_default ),
    sigma( sigma_default ),
    beta( beta_default ),
    vblevel( none ) { }

   void  set_param(Parsing&  P );
};

void ModMisfit::set_param (
  Parsing&  P ) {

  String  s;
  if ( P.GetString ( "vb", s ) ) {
      if ( !GetVerbose ( s, vblevel ) ) { error( "Bad vb parameter" ); }
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, --vb = " << s << endl;
  }

  Real  dtau;
  if ( P.GetReal ( "dtau", dtau ) ) {
      set_dtau ( dtau );
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, dtau = " << dtau << endl;
  }

  Integration  intg;
  if ( P.GetString ( "intg", s ) ) {
      if ( !GetIntegration ( s, intg ) ) { error("Bad int paramater"); }
      SetIntegration ( intg );
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, intg = " << s << endl;
  }

  if ( P.GetDouble ( "dang", dang ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, dang = " << dang << endl;
  }

  if ( P.GetString ( "headwaves", s ) ) {
      if ( S == "on" ) {
          set_search_headwaves( true );
      } else if ( s == "off" ) {
          set_search_headwaves( false );
      } else  {
          error( "Bad headwaves parameter" );
      }
      if ( vblevel >= medium ) { cerr << "ModMisfit::SetParam, HW = " << S << endl; }
  }

  if ( P.GetString ( "mdacc", s ) ) {
      if ( s == String( "always" ) ) {
          mdacc = -1;
      } else {
          s >> mdacc;
      }
  }

  if ( P.GetReal ( "mindist", mindist ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, mindist = " << mindist << endl;
  }

  if ( P.GetInt ( "itermax", itermax ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, itermax = " << itermax << endl;
  }

  if ( P.GetString ( "extrap", s ) ) {
      if ( s == String ( "on" ) ) {
          Extrap = true;
      } else if ( s == String ( "off" ) ) {
          Extrap = false;
      } else {
          error( "extrap not 'on' or 'off'" );
      }
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, Extrap = " << s << endl;
  }

  if ( P.GetReal ( "mindt", mindt ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, mindt = " << mindt << endl;
  }

  if ( P.GetReal ( "sigma", sigma ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, Sigma0 = " << Sigma0 << endl;
  }

  if ( P.GetReal ( "beta", beta ) ) {
      if ( vblevel >= medium ) cerr << "ModMisfit::SetParam, Beta = " << beta << endl;
  }
  cerr << endl;
}

Last edited by kristinu; 05-09-2012 at 01:55 PM..
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