From f23dc5b971d1c11bc0fcb7068788a30e4bd7cbf1 Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <rmlarsen@google.com>
Date: Thu, 3 Dec 2020 14:32:45 -0800
Subject: Revert "Add log2() operator to Eigen"

This reverts commit 4d91519a9be061da5d300079fca17dd0b9328050.
---
 test/packetmath.cpp | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'test/packetmath.cpp')

diff --git a/test/packetmath.cpp b/test/packetmath.cpp
index d995e8b71..ae0ead820 100644
--- a/test/packetmath.cpp
+++ b/test/packetmath.cpp
@@ -488,13 +488,6 @@ void packetmath() {
   packetmath_minus_zero_add<Scalar, Packet>();
 }
 
-// Notice that this definition works for complex types as well.
-// c++11 has std::log2 for real, but not for complex types.
-template <typename Scalar>
-Scalar log2(Scalar x) {
-  return Scalar(M_LOG2E) * std::log(x);
-}
-
 template <typename Scalar, typename Packet>
 void packetmath_real() {
   typedef internal::packet_traits<Scalar> PacketTraits;
@@ -513,7 +506,6 @@ void packetmath_real() {
   if (internal::random<float>(0, 1) < 0.1f) data1[internal::random<int>(0, PacketSize)] = Scalar(0);
 
   CHECK_CWISE1_IF(PacketTraits::HasLog, std::log, internal::plog);
-  CHECK_CWISE1_IF(PacketTraits::HasLog, log2, internal::plog2);
   CHECK_CWISE1_IF(PacketTraits::HasRsqrt, 1 / std::sqrt, internal::prsqrt);
 
   for (int i = 0; i < size; ++i) {
-- 
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