04-02-2014
Process the record only for defined length
I have two files. One file have length defined and other file have data.
I need to do some processing in data file only for the length mentioned in the length file.
my lenth file has one record with five bytes, need to store the last two bytes as length.
for example, if my file has a record like,
000040
Then 40 is my lenth. I need to process my data file for 40 position.
Last edited by srvn_saru; 04-02-2014 at 11:22 AM..
Reason: given bytes instead of position
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LEARN ABOUT DEBIAN
px_get_data_bytes
PX_GET_DATA_BYTES(3) Library Functions Manual PX_GET_DATA_BYTES(3)
NAME
PX_get_data_bytes -- Get value from bytes data field
SYNOPSIS
#include <paradox.h>
int PX_get_data_bytes(pxdoc_t *pxdoc, char *data, int len, char **value)
DESCRIPTION
Reads a data field consisting of an array of bytes into a chunk of memory and returns the pointer to it in value. The memory is allocated
by this function and must be freed by the calling application. You should use this function instead of accessing the data directly.
data points to the start of the data field in the record. It must be calculated by summing up all field length before the field to operate
on and add it to the base pointer of the record.
Note:
This function is deprecated and obsolete if PX_retrieve_record(3) is used.
RETURN VALUE
Returns 0 if the value is NULL, -1 in case of an error and 1 otherwise.
SEE ALSO
PX_get_data_short(3), PX_get_data_long(3), PX_get_data_double(3), PX_get_data_alpha(3), PX_get_data_byte(3)
AUTHOR
This manual page was written by Uwe Steinmann uwe@steinmann.cx.
PX_GET_DATA_BYTES(3)