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[iproute2.git] / netem / paretonormal.c

diff --git a/netem/paretonormal.c b/netem/paretonormal.c
deleted file mode 100644 (file)
index ed75f28..0000000
--- a/netem/paretonormal.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Paretoormal distribution table generator
- *
- * This distribution is simply .25*normal + .75*pareto; a combination
- * which seems to match experimentally observed distributions reasonably
- *  well, but is computationally easy to handle.
- * The entries represent a scaled inverse of the cumulative distribution
- * function.
- *
- * Taken from the uncopyrighted NISTnet code.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <limits.h>
-#include <malloc.h>
-
-#include <linux/types.h>
-#include <linux/pkt_sched.h>
-
-#define TABLESIZE      16384
-#define TABLEFACTOR    NETEM_DIST_SCALE
-
-static double
-normal(double x, double mu, double sigma)
-{
-       return .5 + .5*erf((x-mu)/(sqrt(2.0)*sigma));
-}
-
-static const double a=3.0;
-
-static int
-paretovalue(int i)
-{
-       double dvalue;
-
-       i = 65536-4*i;
-       dvalue = (double)i/(double)65536;
-       dvalue = 1.0/pow(dvalue, 1.0/a);
-       dvalue -= 1.5;
-       dvalue *= (4.0/3.0)*(double)TABLEFACTOR;
-       if (dvalue > 32767)
-               dvalue = 32767;
-       return (int)rint(dvalue);
-}      
-
-int
-main(int argc, char **argv)
-{
-       int i,n;
-       double x;
-       double table[TABLESIZE+1];
-
-       for (x = -10.0; x < 10.05; x += .00005) {
-               i = rint(TABLESIZE*normal(x, 0.0, 1.0));
-               table[i] = x;
-       }
-       printf(
-"# This is the distribution table for the paretonormal distribution.\n"
-       );
-
-       for (i = n = 0; i < TABLESIZE; i += 4) {
-               int normvalue, parvalue, value;
-
-               normvalue = (int) rint(table[i]*TABLEFACTOR);
-               parvalue = paretovalue(i);
-
-               value = (normvalue+3*parvalue)/4;
-               if (value < SHRT_MIN) value = SHRT_MIN;
-               if (value > SHRT_MAX) value = SHRT_MAX;
-
-               printf(" %d", value);
-               if (++n == 8) {
-                       putchar('\n');
-                       n = 0;
-               }
-       }
-
-       return 0;
-}