vppinfra: simpler and faster pool_foreach

[vpp.git] / src / vppinfra / clib.h

diff --git a/src/vppinfra/clib.h b/src/vppinfra/clib.h
index 9474350..22377c6 100644 (file)
--- a/src/vppinfra/clib.h
+++ b/src/vppinfra/clib.h
@@ -332,6 +332,14 @@ extract_bits (uword x, int start, int count)
   _x < _y ? _x : _y;                           \
 })
 
+#define clib_clamp(x,lo,hi)                    \
+({                                             \
+  __typeof__ (x) _x = (x);                     \
+  __typeof__ (lo) _lo = (lo);                  \
+  __typeof__ (hi) _hi = (hi);                  \
+  _x < _lo ? _lo : (_x > _hi ? _hi : _x);      \
+})
+
 #define clib_abs(x)                            \
 ({                                             \
   __typeof__ (x) _x = (x);                     \