1 files changed, 3 insertions, 0 deletions
diff --git a/util.h b/util.h
index 2caf347..f1db6b8 100644
--- a/util.h
+++ b/util.h
@@ -27,6 +27,9 @@
 #define MAX(a,b) ((a) > (b) ? (a) : (b))
 #define LEN(a)   (sizeof(a) / sizeof(a[0]))
 
+#define TV_TO_DOUBLE(x) ((double) ((x).tv_sec) + 0.000001 * \
+                         (double) ((x).tv_usec))
+
 void* s_malloc(size_t);
 void* s_realloc(void*, size_t);