From f9fac1d5b044afb8104ecb5c1e5183c309bafca4 Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <rmlarsen@google.com>
Date: Fri, 4 Dec 2020 21:45:09 +0000
Subject: Add log2() to Eigen.

---
 Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h')

diff --git a/Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h b/Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h
index 0e02a1b20..b0f0b78fc 100644
--- a/Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h
+++ b/Eigen/src/Core/arch/Default/GenericPacketMathFunctionsFwd.h
@@ -32,12 +32,24 @@ EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
 EIGEN_UNUSED
 Packet plog_float(const Packet _x);
 
+/** \internal \returns log2(x) for single precision float */
+template <typename Packet>
+EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
+EIGEN_UNUSED
+Packet plog2_float(const Packet _x);
+
 /** \internal \returns log(x) for single precision float */
 template <typename Packet>
 EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
 EIGEN_UNUSED
 Packet plog_double(const Packet _x);
 
+/** \internal \returns log2(x) for single precision float */
+template <typename Packet>
+EIGEN_DEFINE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS
+EIGEN_UNUSED
+Packet plog2_double(const Packet _x);
+
 /** \internal \returns log(1 + x) */
 template<typename Packet>
 Packet generic_plog1p(const Packet& x);
-- 
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