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author | Pedro Vicente Nunes <pvn@hdfgroup.org> | 2006-06-26 14:41:59 (GMT) |
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committer | Pedro Vicente Nunes <pvn@hdfgroup.org> | 2006-06-26 14:41:59 (GMT) |
commit | 8846157e5985458fd0a3ddb47658a14d10fb97b2 (patch) | |
tree | f542f006bbe7cfa82455610de5e329b3667c6284 /tools/h5dump/binread.c | |
parent | 4dfad81062f0b195ee9fd10f0b4e5ba2f6056aeb (diff) | |
download | hdf5-8846157e5985458fd0a3ddb47658a14d10fb97b2.zip hdf5-8846157e5985458fd0a3ddb47658a14d10fb97b2.tar.gz hdf5-8846157e5985458fd0a3ddb47658a14d10fb97b2.tar.bz2 |
[svn-r12437] Purpose:
new feature. h5dump output of binary data
Description:
a new switch -b FILE_NAME that dumps the contents of memory data to file FILE_NAME in binary form
new program binread.c that reads the contents of this file and outputs it to stdout
added a test for the h5dump shell script that does a run of -b
the binread.c program reads the data used in this run, usage is ./binread FILE_NAME
Solution:
Platforms tested:
linux
solaris
AIX
Misc. update:
Diffstat (limited to 'tools/h5dump/binread.c')
-rw-r--r-- | tools/h5dump/binread.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/tools/h5dump/binread.c b/tools/h5dump/binread.c new file mode 100644 index 0000000..d3b43a9 --- /dev/null +++ b/tools/h5dump/binread.c @@ -0,0 +1,100 @@ + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * 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 * + * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +/* + This program reads binary output from h5dump (-b option). + To use change the following 3 symbols accordingly. + For example, to read 6 elements of a float type from a file "out.dat", define + + #define NELMTS 6 + #define TYPE float + #define FORMAT "%f " + +*/ + +#define NELMTS 2 +#define TYPE int +#define FORMAT "%d " + +/*------------------------------------------------------------------------- + * Function: usage + * + * Purpose: Prints a usage message on stderr and then returns. + * + * Return: void + * + * Programmer: Pedro Vicente Nunes + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static void +usage (void) +{ + fprintf(stderr, "\ + usage: binread FILE_NAME\n"); +} + +/*------------------------------------------------------------------------- + * Function: main + * + * Purpose: main program. + * + *------------------------------------------------------------------------- + */ + +int +main (int argc, const char *argv[]) +{ + FILE *stream; + int numread; + TYPE buf[NELMTS]; + size_t i, nelmts = NELMTS; + char *fname=NULL; + + if (argc != 2) + { + usage(); + exit(1); + } + + fname = strdup(argv[1]); + + if( (stream = fopen(fname, "rb" )) != NULL ) + { + numread = fread( buf, sizeof( TYPE ), nelmts, stream ); + printf( "Number of items read = %d\n", numread ); + + for (i = 0; i < nelmts; i++) + { + printf(FORMAT,buf[i]); + } + printf("\n"); + + fclose( stream ); + } + else + printf( "File %s could not be opened\n",fname ); + + free(fname); + + return 0; +} + |