[rrd-users] CDEF,RPN, no decimal constant possible?

Steve Shipway s.shipway at auckland.ac.nz
Fri Jul 11 11:54:09 CEST 2014

>[constants in the RPN are stored in doubles, but COMPUTE type DS convert using...]
>typedef struct rpn_cdefds_t {
>    char      op;       /* rpn operator type */
>    short     val;      /* used by OP_NUMBER and OP_VARIABLE */
>} rpn_cdefds_t;
>Now val is only a short int.

Well spotted!  I saw the first struct used doubles, but didn't dig deeply enough to spot this one.

I would say this is a bug; however, there might be a reason for it, if Tobi can tell us?

Otherwise, it should probably be a double and not a short -- making a patch for rrdtool should be simple.


Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.shipway at auckland.ac.nz
Ph: +64 9 373 7599 ext 86487

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