text: //=================================================================================================
  /*!
  //  \file blaze/math/typetraits/HasSIMDErf.h
  //  \brief Header file for the HasSIMDErf type trait
  //
  //  Copyright (C) 2013 Klaus Iglberger - All Rights Reserved
  //
  //  This file is part of the Blaze library. You can redistribute it and/or modify it under
  //  the terms of the New (Revised) BSD License. Redistribution and use in source and binary
  //  forms, with or without modification, are permitted provided that the following conditions
  //  are met:
  //
  //  1. Redistributions of source code must retain the above copyright notice, this list of
  //     conditions and the following disclaimer.
  //  2. Redistributions in binary form must reproduce the above copyright notice, this list
  //     of conditions and the following disclaimer in the documentation and/or other materials
  //     provided with the distribution.
  //  3. Neither the names of the Blaze development group nor the names of its contributors
  //     may be used to endorse or promote products derived from this software without specific
  //     prior written permission.
  //
  //  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  //  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  //  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  //  SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  //  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  //  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  //  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  //  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  //  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  //  DAMAGE.
  */
  //=================================================================================================
  
  #ifndef _BLAZE_MATH_TYPETRAITS_HASSIMDERF_H_
  #define _BLAZE_MATH_TYPETRAITS_HASSIMDERF_H_
  
  
  //*************************************************************************************************
  // Includes
  //*************************************************************************************************
  
  #include <blaze/system/Vectorization.h>
  #include <blaze/util/EnableIf.h>
  #include <blaze/util/IntegralConstant.h>
  #include <blaze/util/mpl/Or.h>
  #include <blaze/util/typetraits/Decay.h>
  #include <blaze/util/typetraits/IsDouble.h>
  #include <blaze/util/typetraits/IsFloat.h>
  
  
  namespace blaze {
  
  //=================================================================================================
  //
  //  CLASS DEFINITION
  //
  //=================================================================================================
  
  //*************************************************************************************************
  /*! \cond BLAZE_INTERNAL */
  template< typename T         // Type of the operand
          , typename = void >  // Restricting condition
  struct HasSIMDErfHelper
  {
     enum : bool { value = false };
  };
  /*! \endcond */
  //*************************************************************************************************
  
  
  //*************************************************************************************************
  /*! \cond BLAZE_INTERNAL */
  #if BLAZE_SVML_MODE
  template< typename T >
  struct HasSIMDErfHelper< T, EnableIf_< Or< IsFloat<T>, IsDouble<T> > > >
  {
     enum : bool { value = bool( BLAZE_SSE_MODE     ) ||
                           bool( BLAZE_AVX_MODE     ) ||
                           bool( BLAZE_AVX512F_MODE ) ||
                           bool( BLAZE_MIC_MODE     ) };
  };
  #endif
  /*! \endcond */
  //*************************************************************************************************
  
  
  //*************************************************************************************************
  /*!\brief Availability of a SIMD error function (\c erf) operation for the given data type.
  // \ingroup math_type_traits
  //
  // Depending on the available instruction set (SSE, SSE2, SSE3, SSE4, AVX, AVX2, MIC, ...) and
  // the used compiler, this type trait provides the information whether a SIMD error function
  // (\c erf) operation exists for the given data type \a T (ignoring the cv-qualifiers). In case
  // the SIMD operation is available, the \a value member constant is set to \a true, the nested
  // type definition \a Type is \a TrueType, and the class derives from \a TrueType. Otherwise
  // \a value is set to \a false, \a Type is \a FalseType, and the class derives from \a FalseType.
  // The following example assumes that the Intel SVML is available:
  
     \code
     blaze::HasSIMDErf< float >::value         // Evaluates to 1
     blaze::HasSIMDErf< double >::Type         // Results in TrueType
     blaze::HasSIMDErf< const double >         // Is derived from TrueType
     blaze::HasSIMDErf< unsigned int >::value  // Evaluates to 0
     blaze::HasSIMDErf< long double >::Type    // Results in FalseType
     blaze::HasSIMDErf< complex<double> >      // Is derived from FalseType
     \endcode
  */
  template< typename T >  // Type of the operand
  struct HasSIMDErf
     : public BoolConstant< HasSIMDErfHelper< Decay_<T> >::value >
  {};
  //*************************************************************************************************
  
  } // namespace blaze
  
  #endif
  