Merge remote-tracking branch 'public/bug6538'

Conflicts:
	configure.ac

1 files changed, 16 insertions, 1 deletions

diff --git a/src/common/util.c b/src/common/util.c
index c2dfb54322..e79e73a0ff 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -333,7 +333,7 @@ tor_mathlog(double d)
 }
 
 /** Return the long integer closest to d.  We define this wrapper here so
- * that not all users of math.h need to use the right incancations to get
+ * that not all users of math.h need to use the right intancations to get
  * the c99 functions. */
 long
 tor_lround(double d)
@@ -347,6 +347,21 @@ tor_lround(double d)
 #endif
 }
 
+/** Return the 64-bit integer closest to d.  We define this wrapper here so
+ * that not all users of math.h need to use the right incantations to get the
+ * c99 functions. */
+int64_t
+tor_llround(double d)
+{
+#if defined(HAVE_LLROUND)
+  return (int64_t)llround(d);
+#elif defined(HAVE_RINT)
+  return (int64_t)rint(d);
+#else
+  return (int64_t)(d > 0 ? d + 0.5 : ceil(d - 0.5));
+#endif
+}
+
 /** Returns floor(log2(u64)).  If u64 is 0, (incorrectly) returns 0. */
 int
 tor_log2(uint64_t u64)