From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Wed, 21 Jun 2017 17:11:10 +0000 (+0200)
Subject: regress: provide function to find median
X-Git-Tag: 3.2-pre1~41
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6207655ab285a7fa10bba99b2801526bfae72182;p=thirdparty%2Fchrony.git

regress: provide function to find median
---

diff --git a/regress.c b/regress.c
index 68ef4fa9..e744c500 100644
--- a/regress.c
+++ b/regress.c
@@ -429,6 +429,19 @@ find_median(double *x, int n)
   }
 }
 
+/* ================================================== */
+
+double
+RGR_FindMedian(double *x, int n)
+{
+  double tmp[MAX_POINTS];
+
+  assert(n > 0 && n <= MAX_POINTS);
+  memcpy(tmp, x, n * sizeof (tmp[0]));
+
+  return find_median(tmp, n);
+}
+
 /* ================================================== */
 /* This function evaluates the equation
 
diff --git a/regress.h b/regress.h
index 4e4c32b0..90055dad 100644
--- a/regress.h
+++ b/regress.h
@@ -131,4 +131,7 @@ RGR_MultipleRegress
  double *b2                     /* estimated second slope */
 );
 
+/* Return the median value from an array */
+extern double RGR_FindMedian(double *x, int n);
+
 #endif /* GOT_REGRESS_H */