Implemented calculation of percentiles and Tukey hinges

[pspp-builds.git] / src / subclist.c

diff --git a/src/subclist.c b/src/subclist.c
index d2add44c178952781e384986af54e36198f7e7fa..2a7f3679d955f7390557360fa3cab56f59fec5cd 100644 (file)
--- a/src/subclist.c
+++ b/src/subclist.c
@@ -53,7 +53,7 @@ subc_list_double_push(subc_list_double *l, double d)
 
 /* Return the number of items in the list */
 int 
-subc_list_double_count(subc_list_double *l)
+subc_list_double_count(const subc_list_double *l)
 {
   return l->n_data;
 }
@@ -61,7 +61,7 @@ subc_list_double_count(subc_list_double *l)
 
 /* Index into the list (array) */
 double
-subc_list_double_at(subc_list_double *l, int idx)
+subc_list_double_at(const subc_list_double *l, int idx)
 {
   return l->data[idx];
 }