X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=inline;f=src%2Fdata%2Fcasereader-provider.h;h=772209810a85e44c2f7474a44fcb25235735cf98;hb=51996c07fc2b308ad29dcbaa93e4d5d3d21b3331;hp=43c980a8347e33da91d39555abd94f93bf2db70a;hpb=2bdde1cd21cd58349cf4bd852fddf40524854288;p=pspp

diff --git a/src/data/casereader-provider.h b/src/data/casereader-provider.h
index 43c980a834..772209810a 100644
--- a/src/data/casereader-provider.h
+++ b/src/data/casereader-provider.h
@@ -111,7 +111,7 @@ casereader_create_sequential (const struct taint *,
                               size_t value_cnt, casenumber case_cnt,
                               const struct casereader_class *, void *);
 
-void *casereader_dynamic_cast (struct casereader *, struct casereader_class *);
+void *casereader_dynamic_cast (struct casereader *, const struct casereader_class *);
 
 /* Casereader class for random-access data sources. */
 struct casereader_random_class