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#include "mfhdf.h"
#define FILE_NAME "SDS.hdf"
#define EXT_FILE_NAME "ExternalSDS"
#define OFFSET 24
int main()
{
/************************* Variable declaration **************************/
int32 sd_id, sds_id, sds_index, offset;
intn status;
/********************* End of variable declaration ***********************/
/*
* Open the file and initialize the SD interface.
*/
sd_id = SDstart (FILE_NAME, DFACC_WRITE);
/*
* Select the first data set.
*/
sds_index = 0;
sds_id = SDselect (sd_id, sds_index);
/*
* Create a file with the name EXT_FILE_NAME and move the data set
* values into it, starting at byte location OFFSET.
*/
status = SDsetexternalfile (sds_id, EXT_FILE_NAME, OFFSET);
/*
* Terminate access to the data set, SD interface, and file.
*/
status = SDendaccess (sds_id);
status = SDend (sd_id);
return 0;
}
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