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unable to run factor.exe

  • To: mathgroup at smc.vnet.net
  • Subject: [mg119698] unable to run factor.exe
  • From: Amandeep.Rekhi at tatatechnologies.com
  • Date: Fri, 17 Jun 2011 05:52:36 -0400 (EDT)

Hi

Below I have explained the two scenario for which I tried to run the
code provided by the Mathematica:

Scenario     I:

Unable to run the exe provided factor.exe

When I tried to run the exe provided by Mathematica ( Location :
C:\Program Files\Wolfram
Research\Mathematica\8.0\SystemFiles\Links\MathLink\DeveloperKit\Windows
\PrebuiltExamples )

Below error is coming.  :           "Error detected by MathLink:
MathLink connection was lost.."

I have done all the required changes according to the link:
http://reference.wolfram.com/mathematica/tutorial/MathLinkDeveloperGuide
-Windows.html

Please let me know if there are any other changes that need to be done
before running the program.

Scenario     II:

When tried to run the below program provided by Mathematica after
compiling in VS2005 then below error is coming.

"Error detected by MathLink: Connected MathLink program has closed the
link, but there might still be data underway.."

Process got hanged at the line marked RED in the below program:

If anybody have any idea on how to solve the issue then please let me
know.

Thanks is advance.

//////////////////

#include <stdio.h>

#include <stdlib.h>

#include "mathlink.h"

static void init_and_openlink( int argc, char* argv[]);

static void error( MLINK lp);

MLENV ep = (MLENV)0;

MLINK lp = (MLINK)0;

int main(int argc, char* argv[])

{

      int pkt, n, prime, expt;

      long len, lenp, k;



      init_and_openlink( argc, argv);



      printf( "Integer to factor: ");



#if defined(_MSC_VER) && (_MSC_VER >= 1400)

      scanf_s( "%d", &n);

#else

      scanf( "%d", &n);

#endif



      printf("vlue of n :%d\n",n);



     



      MLPutFunction( lp, "EvaluatePacket", 1L);



     

            MLPutFunction( lp, "FactorInteger", 1L);

           

                  MLPutInteger( lp, n);

                 

      MLEndPacket( lp);

     

     



      while( (pkt = MLNextPacket( lp), pkt) && pkt != RETURNPKT) {

            MLNewPacket( lp);

            if (MLError( lp)) error( lp);

      }

      printf("3333333333333");



      if ( ! MLCheckFunction( lp, "List", &len)) error(lp);

//Error Message :Error detected by MathLink: Connected MathLink program
has closed the link, but there might still

be data underway..



     



      for (k = 1; k <= len; k++) {

            if (MLCheckFunction( lp, "List", &lenp)

            &&  lenp == 2

            &&  MLGetInteger( lp, &prime)

            &&  MLGetInteger( lp, &expt)

            ){

                  printf( "%d ^ %d\n", prime, expt);

            }else{

                  error( lp);

            }

      }

      MLPutFunction( lp, "Exit", 0);



      return 0;

}





static void error( MLINK lp)

{

      if( MLError( lp)){

            fprintf( stderr, "Error detected by MathLink: %s.\n",

                  MLErrorMessage(lp));

      }else{

            fprintf( stderr, "Error detected by this program.\n");

      }

      exit(3);

}





static void deinit( void)

{

      if( ep) MLDeinitialize( ep);

}





static void closelink( void)

{

      if( lp) MLClose( lp);

}





static void init_and_openlink( int argc, char* argv[])

{

#if MLINTERFACE >= 3

      int err;

#else

      long err;

#endif /* MLINTERFACE >= 3 */



      ep =  MLInitialize( (MLParametersPointer)0);

      if( ep == (MLENV)0) exit(1);

      atexit( deinit);



#if MLINTERFACE < 3

      lp = MLOpenArgv( ep, argv, argv + argc, &err);

#else

      lp = MLOpenArgcArgv( ep, argc, argv, &err);

#endif

      if(lp == (MLINK)0) exit(2);

      atexit( closelink);    

}







Thanks & Regards

Amandeep Singh



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