1 files changed, 2 insertions, 0 deletions

diff --git a/include/math/defs.h b/include/math/defs.h
index acfb037..e3c3b55 100644
--- a/include/math/defs.h
+++ b/include/math/defs.h
@@ -31,9 +31,11 @@ typedef float R;
 #ifdef MATH_USE_DOUBLE
 static inline double min(R a, R b) { return fmin(a, b); }
 static inline double max(R a, R b) { return fmax(a, b); }
+static inline double rlog2(R a) { return log2(a); }
 #else // floats
 static inline float min(R a, R b) { return fminf(a, b); }
 static inline float max(R a, R b) { return fmaxf(a, b); }
+static inline float rlog2(R a) { return log2f(a); }
 #endif
 
 static inline R rabs(R x) { return x >= 0.0 ? x : -x; }