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CTBretcode.cxx

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/*----------------------------------------------------------------------------*/
/* C Tool Box: Designed and implemented by:                                   */
/*    Walter F.J. Mueller   Gesellschaft fuer Schwerionenforschung (GSI)      */
/*                          Planckstrasse 1, D-64291 Darmstadt, Germany       */
/*                  Email:  W.F.J.Mueller@gsi.de                              */
/*                  WWW:    http://www-kp3.gsi.de/www/kp3/people/mueller.html */
/*------------------------------------------+---------------------------------*/

#include <errno.h>
#include <string.h>

#include "CTB.hxx"
#include "CTBretcode.hxx"

//------------------------------------------+-----------------------------------

static bool text_defined(const char* c_text)
{
  return c_text && c_text[0];
}

//------------------------------------------+-----------------------------------

static void print_message(ostream& os, const char* c_pref, const char* c_text)
{
  CTBint i_len = strlen(c_text);
  
  os << c_pref;
  os << c_text;

  if (i_len > 0 && c_text[i_len-1] != '\n') os << endl;
  return;
}

//------------------------------------------+-----------------------------------

void CTBretcode::ToStream(ostream& os) const
{
  if (!text_defined(mc_text1) && mi_errno == 0) { // no text1 and no errno
    os << "Return code: " << mi_code << endl;

  } else  {                                 // text1 or errno
    if (!text_defined(mc_text1)) {          // no text1 but errno
      print_message(os,"",strerror(mi_errno));

    } else {                                // text1 given
      print_message(os,"",mc_text1);
      if (text_defined(mc_text2)) {         // text2 given
        print_message(os,"- ",mc_text2);
        if (text_defined(mc_text3)) {       // text3 given
          print_message(os,"- ",mc_text3);
        }
      }
      if (mi_errno != 0) {                  // errno and text1 given
        print_message(os,"",strerror(mi_errno));
      }
    }
  }
  return;
}

//------------------------------------------+-----------------------------------

CTBretcode::operator const char* () const
{
  const char* c_text = 0;
  
  if (mi_code) {
    if (text_defined(mc_text1)) {
      c_text = mc_text1;
    } else {
      c_text = (mi_errno != 0) ? strerror(mi_errno) : "";
    }
  }

  return c_text;
}

//------------------------------------------+-----------------------------------

#if (defined(CTB__OutLine) || defined(CTBretcode__OutLine))
#define inline
#include "CTBretcode.icc"
#undef  inline
#endif

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