X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fexpressions%2Foptimize.c;h=d80f4069b87a4cbfe1e7155f9ff3d4c8684a9848;hb=38f8cf3544615efabc0913ebd00fdf6053cf294d;hp=9f9626bc06329c95a3b75312eb60b7aa149d8e8b;hpb=a19b858e0ac3c69e4a28c0ca6d8674427268a863;p=pspp

diff --git a/src/language/expressions/optimize.c b/src/language/expressions/optimize.c
index 9f9626bc06..d80f4069b8 100644
--- a/src/language/expressions/optimize.c
+++ b/src/language/expressions/optimize.c
@@ -24,6 +24,7 @@
 #include <errno.h>
 #include <stdlib.h>
 #include <libpspp/alloc.h>
+#include <libpspp/assertion.h>
 #include <data/calendar.h>
 #include <data/data-in.h>
 #include <libpspp/message.h>
@@ -44,7 +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;
 
@@ -141,9 +142,9 @@ static double get_number_arg (struct composite_node *, size_t arg_idx);
 static double *get_number_args (struct composite_node *,
                                  size_t arg_idx, size_t arg_cnt,
                                  struct expression *);
-static struct fixed_string get_string_arg (struct composite_node *,
+static struct substring get_string_arg (struct composite_node *,
                                            size_t arg_idx);
-static struct fixed_string *get_string_args (struct composite_node *,
+static struct substring *get_string_args (struct composite_node *,
                                              size_t arg_idx, size_t arg_cnt,
                                              struct expression *);
 static const struct fmt_spec *get_format_arg (struct composite_node *,
@@ -157,12 +158,10 @@ evaluate_tree (struct composite_node *node, struct expression *e)
 #include "optimize.inc"
 
     default:
-      assert (0);
+      NOT_REACHED ();
     }
 
-  /* Not reached. */
-  assert (0);
-  abort ();
+  NOT_REACHED ();
 }
 
 static double
@@ -187,7 +186,7 @@ get_number_args (struct composite_node *c, size_t arg_idx, size_t arg_cnt,
   return d;
 }
 
-static struct fixed_string
+static struct substring
 get_string_arg (struct composite_node *c, size_t arg_idx) 
 {
   assert (arg_idx < c->arg_cnt);
@@ -195,11 +194,11 @@ get_string_arg (struct composite_node *c, size_t arg_idx)
   return c->args[arg_idx]->string.s;
 }
 
-static struct fixed_string *
+static struct substring *
 get_string_args (struct composite_node *c, size_t arg_idx, size_t arg_cnt,
                  struct expression *e) 
 {
-  struct fixed_string *s;
+  struct substring *s;
   size_t i;
 
   s = pool_alloc (e->expr_pool, sizeof *s * arg_cnt);
@@ -236,7 +235,7 @@ emit_number (struct expression *e, double n)
 }
 
 static void
-emit_string (struct expression *e, struct fixed_string s) 
+emit_string (struct expression *e, struct substring s) 
 {
   allocate_aux (e, OP_string)->string = s;
 }
@@ -302,14 +301,14 @@ flatten_atom (union any_node *n, struct expression *e)
       break;
 
     default:
-      abort ();
+      NOT_REACHED ();
     }
 }
 
 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++)
@@ -363,7 +362,7 @@ flatten_node (union any_node *n, struct expression *e)
   else if (is_composite (n->type))
     flatten_composite (n, e);
   else 
-    abort ();
+    NOT_REACHED ();
 }
 
 static union operation_data *