diff options
author | 2016-03-16 21:59:08 +0100 | |
---|---|---|
committer | 2016-03-16 21:59:08 +0100 | |
commit | 46aa9772fcb92f6be5e90a37f4e585e670220348 (patch) | |
tree | 5328a6708760d77d4f903e120dd69b067ece4a62 /Eigen | |
parent | ab9b749b458325d8db5833c1491635044c495bc2 (diff) | |
parent | f1f7181f530926869527b3a2ca681c2b640ceb6f (diff) |
Merged in ebrevdo/eigen (pull request PR-169)
Bugfixes to cuda tests, igamma & igammac implemented, & tests for digamma, igamma, igammac on CPU & GPU.
Diffstat (limited to 'Eigen')
-rw-r--r-- | Eigen/src/Core/GenericPacketMath.h | 10 | ||||
-rw-r--r-- | Eigen/src/Core/GlobalFunctions.h | 30 | ||||
-rw-r--r-- | Eigen/src/Core/MathFunctions.h | 68 | ||||
-rw-r--r-- | Eigen/src/Core/NumTraits.h | 5 | ||||
-rw-r--r-- | Eigen/src/Core/SpecialFunctions.h | 344 | ||||
-rw-r--r-- | Eigen/src/Core/arch/CUDA/MathFunctions.h | 36 | ||||
-rw-r--r-- | Eigen/src/Core/arch/CUDA/PacketMath.h | 5 | ||||
-rw-r--r-- | Eigen/src/Core/functors/BinaryFunctors.h | 49 | ||||
-rw-r--r-- | Eigen/src/Core/util/ForwardDeclarations.h | 2 | ||||
-rw-r--r-- | Eigen/src/Core/util/Meta.h | 5 |
10 files changed, 548 insertions, 6 deletions
diff --git a/Eigen/src/Core/GenericPacketMath.h b/Eigen/src/Core/GenericPacketMath.h index 02882bdea..802def51d 100644 --- a/Eigen/src/Core/GenericPacketMath.h +++ b/Eigen/src/Core/GenericPacketMath.h @@ -78,6 +78,8 @@ struct default_packet_traits HasDiGamma = 0, HasErf = 0, HasErfc = 0, + HasIGamma = 0, + HasIGammac = 0, HasRound = 0, HasFloor = 0, @@ -457,6 +459,14 @@ Packet perf(const Packet& a) { using numext::erf; return erf(a); } template<typename Packet> EIGEN_DECLARE_FUNCTION_ALLOWING_MULTIPLE_DEFINITIONS Packet perfc(const Packet& a) { using numext::erfc; return erfc(a); } +/** \internal \returns the incomplete gamma function igamma(\a a, \a x) */ +template<typename Packet> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +Packet pigamma(const Packet& a, const Packet& x) { using numext::igamma; return igamma(a, x); } + +/** \internal \returns the complementary incomplete gamma function igammac(\a a, \a x) */ +template<typename Packet> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +Packet pigammac(const Packet& a, const Packet& x) { using numext::igammac; return igammac(a, x); } + /*************************************************************************** * The following functions might not have to be overwritten for vectorized types ***************************************************************************/ diff --git a/Eigen/src/Core/GlobalFunctions.h b/Eigen/src/Core/GlobalFunctions.h index 396da8e71..7df0fdda9 100644 --- a/Eigen/src/Core/GlobalFunctions.h +++ b/Eigen/src/Core/GlobalFunctions.h @@ -129,6 +129,36 @@ namespace Eigen ); } + /** \returns an expression of the coefficient-wise igamma(\a a, \a x) to the given arrays. + * + * This function computes the coefficient-wise incomplete gamma function. + * + */ + template<typename Derived,typename ExponentDerived> + inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_igamma_op<typename Derived::Scalar>, const Derived, const ExponentDerived> + igamma(const Eigen::ArrayBase<Derived>& a, const Eigen::ArrayBase<ExponentDerived>& x) + { + return Eigen::CwiseBinaryOp<Eigen::internal::scalar_igamma_op<typename Derived::Scalar>, const Derived, const ExponentDerived>( + a.derived(), + x.derived() + ); + } + + /** \returns an expression of the coefficient-wise igammac(\a a, \a x) to the given arrays. + * + * This function computes the coefficient-wise complementary incomplete gamma function. + * + */ + template<typename Derived,typename ExponentDerived> + inline const Eigen::CwiseBinaryOp<Eigen::internal::scalar_igammac_op<typename Derived::Scalar>, const Derived, const ExponentDerived> + igammac(const Eigen::ArrayBase<Derived>& a, const Eigen::ArrayBase<ExponentDerived>& x) + { + return Eigen::CwiseBinaryOp<Eigen::internal::scalar_igammac_op<typename Derived::Scalar>, const Derived, const ExponentDerived>( + a.derived(), + x.derived() + ); + } + namespace internal { EIGEN_ARRAY_DECLARE_GLOBAL_EIGEN_UNARY(real,scalar_real_op) diff --git a/Eigen/src/Core/MathFunctions.h b/Eigen/src/Core/MathFunctions.h index 447f1b834..ec75175ca 100644 --- a/Eigen/src/Core/MathFunctions.h +++ b/Eigen/src/Core/MathFunctions.h @@ -946,6 +946,14 @@ T (floor)(const T& x) return floor(x); } +#ifdef __CUDACC__ +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +float floor(const float &x) { return ::floorf(x); } + +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +double floor(const double &x) { return ::floor(x); } +#endif + template<typename T> EIGEN_DEVICE_FUNC T (ceil)(const T& x) @@ -985,6 +993,66 @@ T sqrt(const T &x) return sqrt(x); } +template<typename T> +EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +T log(const T &x) { + EIGEN_USING_STD_MATH(log); + return log(x); +} + +#ifdef __CUDACC__ +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +float log(const float &x) { return ::logf(x); } + +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +double log(const double &x) { return ::log(x); } +#endif + +template<typename T> +EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +T tan(const T &x) { + EIGEN_USING_STD_MATH(tan); + return tan(x); +} + +#ifdef __CUDACC__ +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +float tan(const float &x) { return ::tanf(x); } + +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +double tan(const double &x) { return ::tan(x); } +#endif + +template<typename T> +EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +T abs(const T &x) { + EIGEN_USING_STD_MATH(abs); + return abs(x); +} + +#ifdef __CUDACC__ +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +float abs(const float &x) { return ::fabsf(x); } + +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +double abs(const double &x) { return ::fabs(x); } +#endif + +template<typename T> +EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +T exp(const T &x) { + EIGEN_USING_STD_MATH(exp); + return exp(x); +} + +#ifdef __CUDACC__ +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +float exp(const float &x) { return ::expf(x); } + +template<> EIGEN_DEVICE_FUNC EIGEN_ALWAYS_INLINE +double exp(const double &x) { return ::exp(x); } +#endif + } // end namespace numext namespace internal { diff --git a/Eigen/src/Core/NumTraits.h b/Eigen/src/Core/NumTraits.h index 6a596bb7d..7ddb4a867 100644 --- a/Eigen/src/Core/NumTraits.h +++ b/Eigen/src/Core/NumTraits.h @@ -95,6 +95,11 @@ template<typename T> struct GenericNumTraits static inline T infinity() { return numext::numeric_limits<T>::infinity(); } + + EIGEN_DEVICE_FUNC + static inline T quiet_NaN() { + return numext::numeric_limits<T>::quiet_NaN(); + } }; template<typename T> struct NumTraits : GenericNumTraits<T> diff --git a/Eigen/src/Core/SpecialFunctions.h b/Eigen/src/Core/SpecialFunctions.h index b02ad9a1f..c12e41a7b 100644 --- a/Eigen/src/Core/SpecialFunctions.h +++ b/Eigen/src/Core/SpecialFunctions.h @@ -283,8 +283,8 @@ struct digamma_impl { Scalar p, q, nz, s, w, y; bool negative; - const Scalar maxnum = numext::numeric_limits<Scalar>::infinity(); - const Scalar m_pi = 3.14159265358979323846; + const Scalar maxnum = NumTraits<Scalar>::infinity(); + const Scalar m_pi = EIGEN_PI; negative = 0; nz = 0.0; @@ -296,7 +296,7 @@ struct digamma_impl { if (x <= zero) { negative = one; q = x; - p = ::floor(q); + p = numext::floor(q); if (p == q) { return maxnum; } @@ -309,7 +309,7 @@ struct digamma_impl { p += one; nz = q - p; } - nz = m_pi / ::tan(m_pi * nz); + nz = m_pi / numext::tan(m_pi * nz); } else { nz = zero; @@ -327,7 +327,7 @@ struct digamma_impl { y = digamma_impl_maybe_poly<Scalar>::run(s); - y = ::log(s) - (half / s) - y - w; + y = numext::log(s) - (half / s) - y - w; return (negative) ? y - nz : y; } @@ -401,6 +401,327 @@ struct erfc_impl<double> { }; #endif // EIGEN_HAS_C99_MATH +/**************************************************************************** + * Implementation of igammac (complemented incomplete gamma integral) * + ****************************************************************************/ + +template <typename Scalar> +struct igammac_retval { + typedef Scalar type; +}; + +#ifndef EIGEN_HAS_C99_MATH + +template <typename Scalar> +struct igammac_impl { + EIGEN_DEVICE_FUNC + static Scalar run(Scalar a, Scalar x) { + EIGEN_STATIC_ASSERT((internal::is_same<Scalar, Scalar>::value == false), + THIS_TYPE_IS_NOT_SUPPORTED); + return Scalar(0); + } +}; + +#else + +template <typename Scalar> struct igamma_impl; // predeclare igamma_impl + +template <typename Scalar> +struct igamma_helper { + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static Scalar machep() { assert(false && "machep not supported for this type"); return 0.0; } + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static Scalar big() { assert(false && "big not supported for this type"); return 0.0; } +}; + +template <> +struct igamma_helper<float> { + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static float machep() { + return NumTraits<float>::epsilon() / 2; // 1.0 - machep == 1.0 + } + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static float big() { + // use epsneg (1.0 - epsneg == 1.0) + return 1.0 / (NumTraits<float>::epsilon() / 2); + } +}; + +template <> +struct igamma_helper<double> { + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static double machep() { + return NumTraits<double>::epsilon() / 2; // 1.0 - machep == 1.0 + } + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE + static double big() { + return 1.0 / NumTraits<double>::epsilon(); + } +}; + +template <typename Scalar> +struct igammac_impl { + EIGEN_DEVICE_FUNC + static Scalar run(Scalar a, Scalar x) { + /* igamc() + * + * Incomplete gamma integral (modified for Eigen) + * + * + * + * SYNOPSIS: + * + * double a, x, y, igamc(); + * + * y = igamc( a, x ); + * + * DESCRIPTION: + * + * The function is defined by + * + * + * igamc(a,x) = 1 - igam(a,x) + * + * inf. + * - + * 1 | | -t a-1 + * = ----- | e t dt. + * - | | + * | (a) - + * x + * + * + * In this implementation both arguments must be positive. + * The integral is evaluated by either a power series or + * continued fraction expansion, depending on the relative + * values of a and x. + * + * ACCURACY (float): + * + * Relative error: + * arithmetic domain # trials peak rms + * IEEE 0,30 30000 7.8e-6 5.9e-7 + * + * + * ACCURACY (double): + * + * Tested at random a, x. + * a x Relative error: + * arithmetic domain domain # trials peak rms + * IEEE 0.5,100 0,100 200000 1.9e-14 1.7e-15 + * IEEE 0.01,0.5 0,100 200000 1.4e-13 1.6e-15 + * + */ + /* + Cephes Math Library Release 2.2: June, 1992 + Copyright 1985, 1987, 1992 by Stephen L. Moshier + Direct inquiries to 30 Frost Street, Cambridge, MA 02140 + */ + const Scalar zero = 0; + const Scalar one = 1; + const Scalar two = 2; + const Scalar machep = igamma_helper<Scalar>::machep(); + const Scalar maxlog = numext::log(NumTraits<Scalar>::highest()); + const Scalar big = igamma_helper<Scalar>::big(); + const Scalar biginv = 1 / big; + const Scalar nan = NumTraits<Scalar>::quiet_NaN(); + const Scalar inf = NumTraits<Scalar>::infinity(); + + Scalar ans, ax, c, yc, r, t, y, z; + Scalar pk, pkm1, pkm2, qk, qkm1, qkm2; + + if ((x < zero) || ( a <= zero)) { + // domain error + return nan; + } + + if ((x < one) || (x < a)) { + return (one - igamma_impl<Scalar>::run(a, x)); + } + + if (x == inf) return zero; // std::isinf crashes on CUDA + + /* Compute x**a * exp(-x) / gamma(a) */ + ax = a * numext::log(x) - x - lgamma_impl<Scalar>::run(a); + if (ax < -maxlog) { // underflow + return zero; + } + ax = numext::exp(ax); + + // continued fraction + y = one - a; + z = x + y + one; + c = zero; + pkm2 = one; + qkm2 = x; + pkm1 = x + one; + qkm1 = z * x; + ans = pkm1 / qkm1; + + while (true) { + c += one; + y += one; + z += two; + yc = y * c; + pk = pkm1 * z - pkm2 * yc; + qk = qkm1 * z - qkm2 * yc; + if (qk != zero) { + r = pk / qk; + t = numext::abs((ans - r) / r); + ans = r; + } else { + t = one; + } + pkm2 = pkm1; + pkm1 = pk; + qkm2 = qkm1; + qkm1 = qk; + if (abs(pk) > big) { + pkm2 *= biginv; + pkm1 *= biginv; + qkm2 *= biginv; + qkm1 *= biginv; + } + if (t <= machep) break; + } + + return (ans * ax); + } +}; + +#endif // EIGEN_HAS_C99_MATH + +/**************************************************************************** + * Implementation of igamma (incomplete gamma integral) * + ****************************************************************************/ + +template <typename Scalar> +struct igamma_retval { + typedef Scalar type; +}; + +#ifndef EIGEN_HAS_C99_MATH + +template <typename Scalar> +struct igamma_impl { + EIGEN_DEVICE_FUNC + static Scalar run(Scalar a, Scalar x) { + EIGEN_STATIC_ASSERT((internal::is_same<Scalar, Scalar>::value == false), + THIS_TYPE_IS_NOT_SUPPORTED); + return Scalar(0); + } +}; + +#else + +template <typename Scalar> +struct igamma_impl { + EIGEN_DEVICE_FUNC + static Scalar run(Scalar a, Scalar x) { + /* igam() + * Incomplete gamma integral + * + * + * + * SYNOPSIS: + * + * double a, x, y, igam(); + * + * y = igam( a, x ); + * + * DESCRIPTION: + * + * The function is defined by + * + * x + * - + * 1 | | -t a-1 + * igam(a,x) = ----- | e t dt. + * - | | + * | (a) - + * 0 + * + * + * In this implementation both arguments must be positive. + * The integral is evaluated by either a power series or + * continued fraction expansion, depending on the relative + * values of a and x. + * + * ACCURACY (double): + * + * Relative error: + * arithmetic domain # trials peak rms + * IEEE 0,30 200000 3.6e-14 2.9e-15 + * IEEE 0,100 300000 9.9e-14 1.5e-14 + * + * + * ACCURACY (float): + * + * Relative error: + * arithmetic domain # trials peak rms + * IEEE 0,30 20000 7.8e-6 5.9e-7 + * + */ + /* + Cephes Math Library Release 2.2: June, 1992 + Copyright 1985, 1987, 1992 by Stephen L. Moshier + Direct inquiries to 30 Frost Street, Cambridge, MA 02140 + */ + + + /* left tail of incomplete gamma function: + * + * inf. k + * a -x - x + * x e > ---------- + * - - + * k=0 | (a+k+1) + * + */ + const Scalar zero = 0; + const Scalar one = 1; + const Scalar machep = igamma_helper<Scalar>::machep(); + const Scalar maxlog = numext::log(NumTraits<Scalar>::highest()); + const Scalar nan = NumTraits<Scalar>::quiet_NaN(); + + double ans, ax, c, r; + + if (x == zero) return zero; + + if ((x < zero) || ( a <= zero)) { // domain error + return nan; + } + + if ((x > one) && (x > a)) { + return (one - igammac_impl<Scalar>::run(a, x)); + } + + /* Compute x**a * exp(-x) / gamma(a) */ + ax = a * numext::log(x) - x - lgamma_impl<Scalar>::run(a); + if (ax < -maxlog) { + // underflow + return zero; + } + ax = numext::exp(ax); + + /* power series */ + r = a; + c = one; + ans = one; + + while (true) { + r += one; + c *= x/r; + ans += c; + if (c/ans <= machep) break; + } + + return (ans * ax / a); + } +}; + +#endif // EIGEN_HAS_C99_MATH + } // end namespace internal namespace numext { @@ -429,8 +750,21 @@ EIGEN_DEVICE_FUNC inline EIGEN_MATHFUNC_RETVAL(erfc, Scalar) return EIGEN_MATHFUNC_IMPL(erfc, Scalar)::run(x); } +template <typename Scalar> +EIGEN_DEVICE_FUNC inline EIGEN_MATHFUNC_RETVAL(igamma, Scalar) + igamma(const Scalar& a, const Scalar& x) { + return EIGEN_MATHFUNC_IMPL(igamma, Scalar)::run(a, x); +} + +template <typename Scalar> +EIGEN_DEVICE_FUNC inline EIGEN_MATHFUNC_RETVAL(igammac, Scalar) + igammac(const Scalar& a, const Scalar& x) { + return EIGEN_MATHFUNC_IMPL(igammac, Scalar)::run(a, x); +} + } // end namespace numext + } // end namespace Eigen #endif // EIGEN_SPECIAL_FUNCTIONS_H diff --git a/Eigen/src/Core/arch/CUDA/MathFunctions.h b/Eigen/src/Core/arch/CUDA/MathFunctions.h index a2c06a817..6822700f8 100644 --- a/Eigen/src/Core/arch/CUDA/MathFunctions.h +++ b/Eigen/src/Core/arch/CUDA/MathFunctions.h @@ -117,6 +117,42 @@ double2 perfc<double2>(const double2& a) } +template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +float4 pigamma<float4>(const float4& a, const float4& x) +{ + using numext::igamma; + return make_float4( + igamma(a.x, x.x), + igamma(a.y, x.y), + igamma(a.z, x.z), + igamma(a.w, x.w)); +} + +template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +double2 pigamma<double2>(const double2& a, const double2& x) +{ + using numext::igamma; + return make_double2(igamma(a.x, x.x), igamma(a.y, x.y)); +} + +template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +float4 pigammac<float4>(const float4& a, const float4& x) +{ + using numext::igammac; + return make_float4( + igammac(a.x, x.x), + igammac(a.y, x.y), + igammac(a.z, x.z), + igammac(a.w, x.w)); +} + +template<> EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE +double2 pigammac<double2>(const double2& a, const double2& x) +{ + using numext::igammac; + return make_double2(igammac(a.x, x.x), igammac(a.y, x.y)); +} + #endif } // end namespace internal diff --git a/Eigen/src/Core/arch/CUDA/PacketMath.h b/Eigen/src/Core/arch/CUDA/PacketMath.h index a32b41e18..56822838e 100644 --- a/Eigen/src/Core/arch/CUDA/PacketMath.h +++ b/Eigen/src/Core/arch/CUDA/PacketMath.h @@ -42,6 +42,8 @@ template<> struct packet_traits<float> : default_packet_traits HasDiGamma = 1, HasErf = 1, HasErfc = 1, + HasIgamma = 1, + HasIGammac = 1, HasBlend = 0, }; @@ -66,6 +68,8 @@ template<> struct packet_traits<double> : default_packet_traits HasDiGamma = 1, HasErf = 1, HasErfc = 1, + HasIGamma = 1, + HasIGammac = 1, HasBlend = 0, }; @@ -308,7 +312,6 @@ template<> EIGEN_DEVICE_FUNC inline double2 pabs<double2>(const double2& a) { return make_double2(fabs(a.x), fabs(a.y)); } - EIGEN_DEVICE_FUNC inline void ptranspose(PacketBlock<float4,4>& kernel) { double tmp = kernel.packet[0].y; diff --git a/Eigen/src/Core/functors/BinaryFunctors.h b/Eigen/src/Core/functors/BinaryFunctors.h index 4962d625c..5cdfff845 100644 --- a/Eigen/src/Core/functors/BinaryFunctors.h +++ b/Eigen/src/Core/functors/BinaryFunctors.h @@ -337,6 +337,55 @@ template<> struct functor_traits<scalar_boolean_or_op> { }; }; +/** \internal + * \brief Template functor to compute the incomplete gamma function igamma(a, x) + * + * \sa class CwiseBinaryOp, Cwise::igamma + */ +template<typename Scalar> struct scalar_igamma_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_igamma_op) + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Scalar operator() (const Scalar& a, const Scalar& x) const { + using numext::igamma; return igamma(a, x); + } + template<typename Packet> + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Packet packetOp(const Packet& a, const Packet& x) const { + return internal::pigammac(a, x); + } +}; +template<typename Scalar> +struct functor_traits<scalar_igamma_op<Scalar> > { + enum { + // Guesstimate + Cost = 20 * NumTraits<Scalar>::MulCost + 10 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasIGamma + }; +}; + + +/** \internal + * \brief Template functor to compute the complementary incomplete gamma function igammac(a, x) + * + * \sa class CwiseBinaryOp, Cwise::igammac + */ +template<typename Scalar> struct scalar_igammac_op { + EIGEN_EMPTY_STRUCT_CTOR(scalar_igammac_op) + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Scalar operator() (const Scalar& a, const Scalar& x) const { + using numext::igammac; return igammac(a, x); + } + template<typename Packet> + EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE const Packet packetOp(const Packet& a, const Packet& x) const + { + return internal::pigammac(a, x); + } +}; +template<typename Scalar> +struct functor_traits<scalar_igammac_op<Scalar> > { + enum { + // Guesstimate + Cost = 20 * NumTraits<Scalar>::MulCost + 10 * NumTraits<Scalar>::AddCost, + PacketAccess = packet_traits<Scalar>::HasIGammac + }; +}; //---------- binary functors bound to a constant, thus appearing as a unary functor ---------- diff --git a/Eigen/src/Core/util/ForwardDeclarations.h b/Eigen/src/Core/util/ForwardDeclarations.h index f09632375..a102e5457 100644 --- a/Eigen/src/Core/util/ForwardDeclarations.h +++ b/Eigen/src/Core/util/ForwardDeclarations.h @@ -206,6 +206,8 @@ template<typename Scalar> struct scalar_add_op; template<typename Scalar> struct scalar_constant_op; template<typename Scalar> struct scalar_identity_op; template<typename Scalar,bool iscpx> struct scalar_sign_op; +template<typename Scalar> struct scalar_igamma_op; +template<typename Scalar> struct scalar_igammac_op; template<typename LhsScalar,typename RhsScalar=LhsScalar> struct scalar_product_op; template<typename LhsScalar,typename RhsScalar> struct scalar_multiple2_op; diff --git a/Eigen/src/Core/util/Meta.h b/Eigen/src/Core/util/Meta.h index 6b35179f2..24e8a6d8a 100644 --- a/Eigen/src/Core/util/Meta.h +++ b/Eigen/src/Core/util/Meta.h @@ -148,6 +148,7 @@ template<typename T> struct numeric_limits static T (max)() { assert(false && "Highest not supported for this type"); } static T (min)() { assert(false && "Lowest not supported for this type"); } static T infinity() { assert(false && "Infinity not supported for this type"); } + static T quiet_NaN() { assert(false && "quiet_NaN not supported for this type"); } }; template<> struct numeric_limits<float> { @@ -159,6 +160,8 @@ template<> struct numeric_limits<float> static float (min)() { return FLT_MIN; } EIGEN_DEVICE_FUNC static float infinity() { return CUDART_INF_F; } + EIGEN_DEVICE_FUNC + static float quiet_NaN() { return CUDART_NAN_F; } }; template<> struct numeric_limits<double> { @@ -170,6 +173,8 @@ template<> struct numeric_limits<double> static double (min)() { return DBL_MIN; } EIGEN_DEVICE_FUNC static double infinity() { return CUDART_INF; } + EIGEN_DEVICE_FUNC + static double quiet_NaN() { return CUDART_NAN; } }; template<> struct numeric_limits<int> { |