upstream

1 files changed, 13 insertions, 13 deletions

diff --git a/src/scroll.c b/src/scroll.c
index abc5c17400a..78ebe65bdcc 100644
--- a/src/scroll.c
+++ b/src/scroll.c
@@ -253,24 +253,24 @@ do_scrolling (struct frame *frame, struct glyph_matrix *current_matrix,
   /* A queue for line insertions to be done.  */
   struct queue { int count, pos; };
   struct queue *queue_start
-    = (struct queue *) alloca (current_matrix->nrows * sizeof (struct queue));
+    = alloca (current_matrix->nrows * sizeof *queue_start);
   struct queue *queue = queue_start;
 
-  char *retained_p = (char *) alloca (window_size * sizeof (char));
-  int *copy_from = (int *) alloca (window_size * sizeof (int));
+  char *retained_p = alloca (window_size * sizeof *retained_p);
+  int *copy_from = alloca (window_size * sizeof *copy_from);
 
   /* Zero means line is empty.  */
   memset (retained_p, 0, window_size * sizeof (char));
   for (k = 0; k < window_size; ++k)
     copy_from[k] = -1;
 
-#if GLYPH_DEBUG
+#ifdef GLYPH_DEBUG
 # define CHECK_BOUNDS                                                   \
   do                                                                    \
     {                                                                   \
       int ck;                                                           \
       for (ck = 0; ck < window_size; ++ck)                              \
-        xassert (copy_from[ck] == -1                                    \
+        eassert (copy_from[ck] == -1                                    \
                  || (copy_from[ck] >= 0 && copy_from[ck] < window_size)); \
     }                                                                   \
   while (0);
@@ -317,12 +317,12 @@ do_scrolling (struct frame *frame, struct glyph_matrix *current_matrix,
         {
           /* Best thing done here is no insert or delete, i.e. a write.  */
           --i, --j;
-          xassert (i >= 0 && i < window_size);
-          xassert (j >= 0 && j < window_size);
+          eassert (i >= 0 && i < window_size);
+          eassert (j >= 0 && j < window_size);
           copy_from[i] = j;
           retained_p[j] = 1;
 
-#if GLYPH_DEBUG
+#ifdef GLYPH_DEBUG
           CHECK_BOUNDS;
 #endif
         }
@@ -368,13 +368,13 @@ do_scrolling (struct frame *frame, struct glyph_matrix *current_matrix,
     }
 
   for (k = 0; k < window_size; ++k)
-    xassert (copy_from[k] >= 0 && copy_from[k] < window_size);
+    eassert (copy_from[k] >= 0 && copy_from[k] < window_size);
 
   /* Perform the row swizzling.  */
   mirrored_line_dance (current_matrix, unchanged_at_top, window_size,
                        copy_from, retained_p);
 
-  /* Some sanity checks if GLYPH_DEBUG != 0.  */
+  /* Some sanity checks if GLYPH_DEBUG is defined.  */
   CHECK_MATRIX (current_matrix);
 
   if (terminal_window_p)
@@ -671,11 +671,11 @@ do_direct_scrolling (struct frame *frame, struct glyph_matrix *current_matrix,
   int write_follows_p = 1;
 
   /* For each row in the new matrix what row of the old matrix it is.  */
-  int *copy_from = (int *) alloca (window_size * sizeof (int));
+  int *copy_from = alloca (window_size * sizeof *copy_from);
 
   /* Non-zero for each row in the new matrix that is retained from the
      old matrix.  Lines not retained are empty.  */
-  char *retained_p = (char *) alloca (window_size * sizeof (char));
+  char *retained_p = alloca (window_size * sizeof *retained_p);
 
   memset (retained_p, 0, window_size * sizeof (char));
 
@@ -728,7 +728,7 @@ do_direct_scrolling (struct frame *frame, struct glyph_matrix *current_matrix,
              place they belong.  */
           int n_to_write = p->writecount;
           write_follows_p = 1;
-          xassert (n_to_write > 0);
+          eassert (n_to_write > 0);
 
           if (i > j)
             {