[tor-commits] [tor/master] smartlist_pqueue: use ptrdiff_t instead of int for offsets.

[asn@xxxxxxxxxxxxxx]

commit dc199f40fb03588af0bccb149a564e895e11d60d
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Wed Sep 4 10:56:14 2019 -0400

    smartlist_pqueue: use ptrdiff_t instead of int for offsets.
    
    This is technically correct, but should not matter in practice,
    since we don't use this on any structs whose size exceeds INT_MAX.
---
 src/lib/container/smartlist.c | 10 +++++-----
 src/lib/container/smartlist.h |  9 +++++----
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/lib/container/smartlist.c b/src/lib/container/smartlist.c
index 3ab2797d6..2b71c1128 100644
--- a/src/lib/container/smartlist.c
+++ b/src/lib/container/smartlist.c
@@ -678,7 +678,7 @@ smartlist_sort_pointers(smartlist_t *sl)
 static inline void
 smartlist_heapify(smartlist_t *sl,
                   int (*compare)(const void *a, const void *b),
-                  int idx_field_offset,
+                  ptrdiff_t idx_field_offset,
                   int idx)
 {
   while (1) {
@@ -725,7 +725,7 @@ smartlist_heapify(smartlist_t *sl,
 void
 smartlist_pqueue_add(smartlist_t *sl,
                      int (*compare)(const void *a, const void *b),
-                     int idx_field_offset,
+                     ptrdiff_t idx_field_offset,
                      void *item)
 {
   int idx;
@@ -754,7 +754,7 @@ smartlist_pqueue_add(smartlist_t *sl,
 void *
 smartlist_pqueue_pop(smartlist_t *sl,
                      int (*compare)(const void *a, const void *b),
-                     int idx_field_offset)
+                     ptrdiff_t idx_field_offset)
 {
   void *top;
   tor_assert(sl->num_used);
@@ -778,7 +778,7 @@ smartlist_pqueue_pop(smartlist_t *sl,
 void
 smartlist_pqueue_remove(smartlist_t *sl,
                         int (*compare)(const void *a, const void *b),
-                        int idx_field_offset,
+                        ptrdiff_t idx_field_offset,
                         void *item)
 {
   int idx = IDX_OF_ITEM(item);
@@ -802,7 +802,7 @@ smartlist_pqueue_remove(smartlist_t *sl,
 void
 smartlist_pqueue_assert_ok(smartlist_t *sl,
                            int (*compare)(const void *a, const void *b),
-                           int idx_field_offset)
+                           ptrdiff_t idx_field_offset)
 {
   int i;
   for (i = sl->num_used - 1; i >= 0; --i) {
diff --git a/src/lib/container/smartlist.h b/src/lib/container/smartlist.h
index 81b015143..25638e4b2 100644
--- a/src/lib/container/smartlist.h
+++ b/src/lib/container/smartlist.h
@@ -13,6 +13,7 @@
  **/
 
 #include <stdarg.h>
+#include <stddef.h>
 
 #include "lib/smartlist_core/smartlist_core.h"
 #include "lib/smartlist_core/smartlist_foreach.h"
@@ -72,18 +73,18 @@ int smartlist_bsearch_idx(const smartlist_t *sl, const void *key,
 
 void smartlist_pqueue_add(smartlist_t *sl,
                           int (*compare)(const void *a, const void *b),
-                          int idx_field_offset,
+                          ptrdiff_t idx_field_offset,
                           void *item);
 void *smartlist_pqueue_pop(smartlist_t *sl,
                            int (*compare)(const void *a, const void *b),
-                           int idx_field_offset);
+                           ptrdiff_t idx_field_offset);
 void smartlist_pqueue_remove(smartlist_t *sl,
                              int (*compare)(const void *a, const void *b),
-                             int idx_field_offset,
+                             ptrdiff_t idx_field_offset,
                              void *item);
 void smartlist_pqueue_assert_ok(smartlist_t *sl,
                                 int (*compare)(const void *a, const void *b),
-                                int idx_field_offset);
+                                ptrdiff_t idx_field_offset);
 
 char *smartlist_join_strings(smartlist_t *sl, const char *join, int terminate,
                              size_t *len_out) ATTR_MALLOC;



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