X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=src%2Fmath%2Fhistogram.c;h=1b55d204b866fa2e15dc4ff3f84d3b3a509a9915;hb=refs%2Fbuilds%2F20110924030502%2Fpspp;hp=3c88c3858f61c6b1c2230843a7b9151a47902956;hpb=d0b91eae59319ab2756d0d43b9cb15eb9cd3c234;p=pspp
diff --git a/src/math/histogram.c b/src/math/histogram.c
index 3c88c3858f..1b55d204b8 100644
--- a/src/math/histogram.c
+++ b/src/math/histogram.c
@@ -1,5 +1,5 @@
/* PSPP - a program for statistical analysis.
- Copyright (C) 2004, 2008, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2008, 2009, 2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -15,16 +15,17 @@
along with this program. If not, see . */
#include
-#include "histogram.h"
-#include
-#include
-#include
+#include "math/histogram.h"
#include
-#include "chart-geometry.h"
#include
+#include "libpspp/assertion.h"
+#include "libpspp/cast.h"
+#include "math/chart-geometry.h"
+
+#include "gl/xalloc.h"
void
histogram_add (struct histogram *h, double y, double c)
@@ -65,7 +66,7 @@ histogram_create (int bins, double min, double max)
int n = ceil (max / (bin_width_2) ) ;
- assert (max > min);
+ assert (max >= min);
if ( ! (n % 2 ) ) n++;
upper_limit = n * bin_width_2;