Add CONST_CAST macro, for casting away "const" more safely.

[pspp-builds.git] / src / data / casewindow.c

diff --git a/src/data/casewindow.c b/src/data/casewindow.c
index 9b04b9413c61bbace1e5b189d68e65eebe152482..936b6aa940051be14a422fde8a8773f22388eeb7 100644 (file)
--- a/src/data/casewindow.c
+++ b/src/data/casewindow.c
@@ -168,7 +168,7 @@ casewindow_pop_tail (struct casewindow *cw, casenumber case_cnt)
 struct ccase *
 casewindow_get_case (const struct casewindow *cw_, casenumber case_idx)
 {
-  struct casewindow *cw = (struct casewindow *) cw_;
+  struct casewindow *cw = CONST_CAST (struct casewindow *, cw_);
 
   assert (case_idx >= 0 && case_idx < casewindow_get_case_cnt (cw));
   if (casewindow_error (cw))