A minor optimization.

diff --git a/lib/gbuf.h b/lib/gbuf.h
index 519a7c0fe2eb515e8c05c9e864dad6f0bb051dfb..0775f20cb3738bb976176a72af94918322261f9d 100644 (file)
--- a/lib/gbuf.h
+++ b/lib/gbuf.h
@@ -49,7 +49,7 @@ GBUF_PREFIX(realloc)(BUF_T *b, uns len)
 static inline void
 GBUF_PREFIX(grow)(BUF_T *b, uns len)
 {
-  if (len <= b->len)
+  if (likely(len <= b->len))
     return;
   if (len < 2*b->len)                  // to ensure logarithmic cost
     len = 2*b->len;