From 2aab794c004027d008d6b0b64165bf1961d5d2bb Mon Sep 17 00:00:00 2001
From: Yi Kong <yikong@google.com>
Date: Fri, 25 Feb 2022 16:32:14 +0800
Subject: Upgrade eigen to 3.4.0

Steps:
 * Removed common files between Android copy and the matching upstream copy
 * Obtained latest upstream tarball (see README.version)
 * Extracted over the directory

Bug: 148287349
Test: presubmit
Change-Id: Iee2744719075fdf000b315e973645923da766111
---
 Eigen/src/plugins/ArrayCwiseBinaryOps.h | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

(limited to 'Eigen/src/plugins/ArrayCwiseBinaryOps.h')

diff --git a/Eigen/src/plugins/ArrayCwiseBinaryOps.h b/Eigen/src/plugins/ArrayCwiseBinaryOps.h
index 1f8a531af..0e5d5445b 100644
--- a/Eigen/src/plugins/ArrayCwiseBinaryOps.h
+++ b/Eigen/src/plugins/ArrayCwiseBinaryOps.h
@@ -75,6 +75,32 @@ max
   return (max)(Derived::PlainObject::Constant(rows(), cols(), other));
 }
 
+/** \returns an expression of the coefficient-wise absdiff of \c *this and \a other
+  *
+  * Example: \include Cwise_absolute_difference.cpp
+  * Output: \verbinclude Cwise_absolute_difference.out
+  *
+  * \sa absolute_difference()
+  */
+EIGEN_MAKE_CWISE_BINARY_OP(absolute_difference,absolute_difference)
+
+/** \returns an expression of the coefficient-wise absolute_difference of \c *this and scalar \a other
+  *
+  * \sa absolute_difference()
+  */
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE const CwiseBinaryOp<internal::scalar_absolute_difference_op<Scalar,Scalar>, const Derived,
+                                        const CwiseNullaryOp<internal::scalar_constant_op<Scalar>, PlainObject> >
+#ifdef EIGEN_PARSED_BY_DOXYGEN
+absolute_difference
+#else
+(absolute_difference)
+#endif
+(const Scalar &other) const
+{
+  return (absolute_difference)(Derived::PlainObject::Constant(rows(), cols(), other));
+}
+
 /** \returns an expression of the coefficient-wise power of \c *this to the given array of \a exponents.
   *
   * This function computes the coefficient-wise power.
@@ -119,7 +145,7 @@ OP(const Scalar& s) const { \
   return this->OP(Derived::PlainObject::Constant(rows(), cols(), s)); \
 } \
 EIGEN_DEVICE_FUNC friend EIGEN_STRONG_INLINE const RCmp ## COMPARATOR ## ReturnType \
-OP(const Scalar& s, const Derived& d) { \
+OP(const Scalar& s, const EIGEN_CURRENT_STORAGE_BASE_CLASS<Derived>& d) { \
   return Derived::PlainObject::Constant(d.rows(), d.cols(), s).OP(d); \
 }
 
@@ -314,9 +340,9 @@ polygamma(const EIGEN_CURRENT_STORAGE_BASE_CLASS<DerivedN> &n) const
   *
   * It returns the Riemann zeta function of two arguments \c *this and \a q:
   *
-  * \param *this is the exposent, it must be > 1
   * \param q is the shift, it must be > 0
   *
+  * \note *this is the exponent, it must be > 1.
   * \note This function supports only float and double scalar types. To support other scalar types, the user has
   * to provide implementations of zeta(T,T) for any scalar type T to be supported.
   *
-- 
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