X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fexpressions%2Fhelpers.h;h=2465d63e80a70fadb91bc1d2d488079cc4ba7304;hb=3b54533821614d17afc61f1cd3b87d3a06fbf4da;hp=570cf132341e2aa748a8a9deecb7ec2bbe98ef40;hpb=81579d9e9f994fb2908f50af41c3eb033d216e58;p=pspp

diff --git a/src/language/expressions/helpers.h b/src/language/expressions/helpers.h
index 570cf13234..2465d63e80 100644
--- a/src/language/expressions/helpers.h
+++ b/src/language/expressions/helpers.h
@@ -1,3 +1,21 @@
+/*
+PSPP - a program for statistical analysis.
+Copyright (C) 2017 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
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
 #ifndef EXPRESSIONS_HELPERS_H
 #define EXPRESSIONS_HELPERS_H
 
@@ -14,8 +32,8 @@
 #include "data/case.h"
 #include "data/data-in.h"
 #include "data/data-out.h"
+#include "data/dataset.h"
 #include "data/dictionary.h"
-#include "data/procedure.h"
 #include "data/settings.h"
 #include "data/value.h"
 #include "data/variable.h"
@@ -81,4 +99,15 @@ double cdf_bvnor (double x0, double x1, double r);
 
 double idf_fdist (double P, double a, double b);
 
+double round_nearest (double x, double mult, double fuzzbits);
+double round_zero (double x, double mult, double fuzzbits);
+
+struct substring replace_string (struct expression *,
+                                 struct substring haystack,
+                                 struct substring needle,
+                                 struct substring replacement,
+                                 double n);
+
+double median (double *, size_t n);
+
 #endif /* expressions/helpers.h */