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USAGE
signed int scdckprev(
signed int handle,
void *key,
signed long *recno );
PROTOTYPE IN
sc_base.h
DESCRIPTION
scdckprev will decrement the key pointer and return the key value
key and data record number recno associated with the new current
key.
If scdckprev is called immediately after opening the index file the last
logical key will be returned.
NOTES
The user must ensure that the buffer used to return the key is large
enough to hold the entire key. The maximum length of the key can be
determined via a call to scdcinfo.
All keys are returned as strings.
EXAMPLE
#include <stdio.h>
#include <softc.h>
#include <sc_base.h>
void main()
{
int ntx;
char character[65];
long recno;
scdinit(20,0);
if (scdcopenx(&ntx,"TOCNAME.NTX",SC_BUFFER) == SC_SUCCESS) {
scdckprev(ntx,character,&recno); /* get last key */
printf("%s %ld\n",character,recno);
scdcclose(ntx);
}
scdterm();
}
See Also:
scdcinfo
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