X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fexpressions%2Foptimize.c;h=d80f4069b87a4cbfe1e7155f9ff3d4c8684a9848;hb=e070d7ddf78446b9852c61c9af84ad3659bac3b3;hp=154517927dee47bdecaa68fe93d4af926dd0227f;hpb=97d4f38945476834fd7fce612b663f19f2b291f8;p=pspp

diff --git a/src/language/expressions/optimize.c b/src/language/expressions/optimize.c
index 154517927d..d80f4069b8 100644
--- a/src/language/expressions/optimize.c
+++ b/src/language/expressions/optimize.c
@@ -45,7 +45,7 @@ expr_optimize (union any_node *node, struct expression *e)
 {
   int nonconst_cnt = 0; /* Number of nonconstant children. */
   int sysmis_cnt = 0;   /* Number of system-missing children. */
-  struct operation *op;
+  const struct operation *op;
   struct composite_node *c;
   int i;
 
@@ -308,7 +308,7 @@ flatten_atom (union any_node *n, struct expression *e)
 static void
 flatten_composite (union any_node *n, struct expression *e)
 {
-  struct operation *op = &operations[n->type];
+  const struct operation *op = &operations[n->type];
   size_t i;
       
   for (i = 0; i < n->composite.arg_cnt; i++)