hdf5/tools/h5diff/h5diff_main.c

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
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 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
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 * access to either file, you may request a copy from help@hdfgroup.org.     *
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#include "h5diff.h"
#include <stdlib.h>
#include <assert.h>
#include "h5diff_common.h"

/*-------------------------------------------------------------------------
 * Function: main
 *
 * Purpose: h5diff main program
 *
 * Return: An  exit status of 0 means no differences were found, 1 means some
 *   differences were found.
 *
 * Programmer: Pedro Vicente, pvn@ncsa.uiuc.edu
 *
 * Date: May 9, 2003
 *
 * Comments:
 *
 * Modifications: July 2004
 *  Introduced the four modes:
 *   Normal mode: print the number of differences found and where they occured
 *   Report mode: print the above plus the differences
 *   Verbose mode: print the above plus a list of objects and warnings
 *   Quiet mode: do not print output
 *
 * November 2004: Leon Arber (larber@uiuc.edu)
 *     Additions that allow h5diff to be run in parallel
 *
 * February 2005: Leon Arber (larber@uiuc.edu)
 *   h5diff and ph5diff split into two files, one that is used
 *   to build a serial h5diff and one used to build a parallel h5diff
 *   Common functions have been moved to h5diff_common.c
 *
 * October 2005
 *  Introduced a new field 'not_cmp' to 'diff_opt_t' that detects
 *  if some objects are not comparable and prints the message
 *  "Some objects are not comparable"
 *
 * February 2007
 *  Added comparison for dataset regions. 
 *  Added support for reading and comparing by hyperslabs for large files.
 *  Inclusion of a relative error formula to compare floating
 *   point numbers in order to deal with floating point uncertainty. 
 *  Printing of dataset dimensions along with dataset name
 *
 *-------------------------------------------------------------------------
 */


int main(int argc, const char *argv[])
{
 int        ret;
 const char *fname1 = NULL;
 const char *fname2 = NULL;
 const char *objname1  = NULL;
 const char *objname2  = NULL;
 hsize_t    nfound=0;
 diff_opt_t options;

 parse_input(argc, argv, &fname1, &fname2, &objname1, &objname2, &options);

 nfound = h5diff(fname1,fname2,objname1,objname2,&options);

 print_info(&options);

/*-------------------------------------------------------------------------
 * exit code
 *   >0 if differences, 0 if no differences, <0 if error
 *-------------------------------------------------------------------------
 */

 ret= (nfound==0 ? 0 : 1 );
 if (options.err_stat)
  ret=-1;
 return ret;
}