X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_rpncalc.h;h=ab990b2204bd1e61024a150495552ea23a5125e8;hp=61b89407b160a9e632a938ba28bd44b0cfac4a86;hb=9da3f4059b2daf265ebdd1e080f7ddf0d8e86f85;hpb=0b3205462f58dc3d59fe016563629e0bd03f8ae3

diff --git a/src/rrd_rpncalc.h b/src/rrd_rpncalc.h
index 61b8940..ab990b2 100644
--- a/src/rrd_rpncalc.h
+++ b/src/rrd_rpncalc.h
@@ -41,7 +41,7 @@ typedef struct rpn_cdefds_t {
 #define DEF_NAM_FMT "%255[-_A-Za-z0-9]"
 
 /* limit imposed by sizeof(rpn_cdefs_t) and rrd.ds_def.par */
-#define DS_CDEF_MAX_RPN_NODES 26
+#define DS_CDEF_MAX_RPN_NODES (int)(sizeof(unival)*10 / sizeof(rpn_cdefds_t))
 
 typedef struct rpnstack_t {
     double   *s;