commit 3ba7581129dcffb16cca2aa8cfc2bd0fa4c8dd06 Author: Mike Perry mikeperry-git@torproject.org Date: Tue Oct 23 19:23:09 2018 +0000
Provide a smartlist reverse-order traversal.
We need this for padding negotiation so that we can have later machine revisions supercede earlier ones.
Co-authored-by: George Kadianakis desnacked@riseup.net --- src/lib/smartlist_core/smartlist_foreach.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/src/lib/smartlist_core/smartlist_foreach.h b/src/lib/smartlist_core/smartlist_foreach.h index 54f08ac47..14f2930c9 100644 --- a/src/lib/smartlist_core/smartlist_foreach.h +++ b/src/lib/smartlist_core/smartlist_foreach.h @@ -83,6 +83,14 @@ ++var ## _sl_idx) { \ var = (sl)->list[var ## _sl_idx];
+#define SMARTLIST_FOREACH_REVERSE_BEGIN(sl, type, var) \ + STMT_BEGIN \ + int var ## _sl_idx, var ## _sl_len=(sl)->num_used; \ + type var; \ + for (var ## _sl_idx = var ## _sl_len-1; var ## _sl_idx >= 0; \ + --var ## _sl_idx) { \ + var = (sl)->list[var ## _sl_idx]; + #define SMARTLIST_FOREACH_END(var) \ var = NULL; \ (void) var ## _sl_idx; \