Matthew:
NO, you are not using Judy correctly. I think you are being deceived by the
macrosJ1S and JLI. They call JudyLIns(&storage, ..) and
Judy1Set(&newPair,..); Noticethat "storage" and "newPair" etc. are actually
pointers to the pointer to the actual Judy arrays.The contents of newPair and
storage change as the Judy array grows. When you setnewPair and storage to
NULL, you are destroying the pointers to the actual Judy arrays.After setting
them to NULL, and then do a J1S() or JLI(), you are actually creatinga new Judy
Arrays and abandoning the old ones. I miss comments describing whatyou are
trying to accomplish. Good Luck.
I hope that helps
Doug Baskins <[email protected]>
On Saturday, November 18, 2017 11:15 AM, Matthew Brown <[email protected]>
wrote:
Dear Judy Masters,
I am having trouble with the following program that uses Judy Arrays. I know
the program appears to be an inefficient method to achieve a certain goal, but
it is the simplest program that demonstrates my problem. I would be very
grateful if someone could take a look at what I am doing wrong.
The problem is essentially this: stepping through the program with the debugger
causes the counter variable to follow the sequence 0,1,2,1.
Rather, I am expecting the sequence to be 0,1,2,3 by the successive addition of
a new entry to the relevant J1 Array.
I am using icc to compile both Judy and the sample program.
Thank you very muchMatthew
#include <stdio.h>#include <stdlib.h>
#include "Judy.h"
int main(void){
printf("Hello Everyone");
int Rc_int;
Word_t *PValue;
Word_t Value;
Pvoid_t PArray;
Pvoid_t Ref;
Pvoid_t newPair;
Pvoid_t storage;
//A counter variableWord_t counter=0;
newPair = (Pvoid_t) NULL;
J1S(Rc_int, newPair, 1);J1S(Rc_int, newPair, 2);
PArray = (Pvoid_t) NULL;
J1S(Rc_int, PArray, (Word_t)newPair);
storage = (Pvoid_t) NULL;
JLI(PValue, storage, 2);*PValue = (Word_t)PArray;
JLG(PValue, storage, 2);Value = *PValue;
Ref = (Pvoid_t)Value;
J1C(counter, Ref, 0, -1);
newPair = (Pvoid_t)NULL;
J1S(Rc_int, newPair, 3);J1S(Rc_int, newPair, 4);
JLG(PValue, storage, 2);Value = *PValue;
PArray = (Pvoid_t)Value;J1S(Rc_int, PArray, (Word_t)newPair);
JLG(PValue, storage, 2);Value = *PValue;
Ref = (Pvoid_t)Value;
J1C(counter, Ref, 0, -1);
newPair = (Pvoid_t) NULL;
J1S(Rc_int, newPair, 5);J1S(Rc_int, newPair, 6);
JLG(PValue, storage, 2);Value = *PValue;
PArray = (Pvoid_t)Value;J1S(Rc_int, PArray, (Word_t)newPair);
JLG(PValue, storage, 2);Value = *PValue;
Ref = (Pvoid_t)Value;
J1C(counter, Ref, 0, -1);
return 0;
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