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Merge pull request #31 from STEllAR-GROUP/quatslice_operation
Adding quatslice view for 4D arrays
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| //================================================================================================= | ||
| /*! | ||
| // \file blaze_tensor/math/Array.h | ||
| // \brief Header file for all basic Array functionality | ||
| // | ||
| // Copyright (C) 2012-2018 Klaus Iglberger - All Rights Reserved | ||
| // Copyright (C) 2018-2019 Hartmut Kaiser - 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. | ||
| */ | ||
| //================================================================================================= | ||
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| #ifndef _BLAZE_TENSOR_MATH_ARRAY_H_ | ||
| #define _BLAZE_TENSOR_MATH_ARRAY_H_ | ||
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| //************************************************************************************************* | ||
| // Includes | ||
| //************************************************************************************************* | ||
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| #include <array> | ||
| #include <iomanip> | ||
| #include <iosfwd> | ||
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| #include <blaze/math/Matrix.h> | ||
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| #include <blaze_tensor/math/expressions/Forward.h> | ||
| #include <blaze_tensor/math/expressions/Array.h> | ||
| #include <blaze_tensor/util/ArrayForEach.h> | ||
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| namespace blaze { | ||
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| //================================================================================================= | ||
| // | ||
| // GLOBAL FUNCTIONS | ||
| // | ||
| //================================================================================================= | ||
|
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| //************************************************************************************************* | ||
| /*!\name Array functions */ | ||
| //@{ | ||
| template< typename MT > | ||
| bool isUniform( const Array<MT>& m ); | ||
| //@} | ||
| //************************************************************************************************* | ||
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| //************************************************************************************************* | ||
| /*!\brief Checks if the given tensor is a uniform tensor. | ||
| // \ingroup tensor | ||
| // | ||
| // \param m The tensor to be checked. | ||
| // \return \a true if the tensor is a uniform tensor, \a false if not. | ||
| // | ||
| // This function checks if the given dense or sparse tensor is a uniform tensor. The tensor | ||
| // is considered to be uniform if all its elements are identical. The following code example | ||
| // demonstrates the use of the function: | ||
| \code | ||
| blaze::Dynamictensor<int,blaze::rowMajor> A, B; | ||
| // ... Initialization | ||
| if( isUniform( A ) ) { ... } | ||
| \endcode | ||
| // Optionally, it is possible to switch between strict semantics (blaze::strict) and relaxed | ||
| // semantics (blaze::relaxed): | ||
| \code | ||
| if( isUniform<relaxed>( A ) ) { ... } | ||
| \endcode | ||
| // It is also possible to check if a tensor expression results in a uniform tensor: | ||
| \code | ||
| if( isUniform( A * B ) ) { ... } | ||
| \endcode | ||
| // However, note that this might require the complete evaluation of the expression, including | ||
| // the generation of a temporary tensor. | ||
| */ | ||
| template< typename MT > // Type of the tensor | ||
| inline bool isUniform( const Array<MT>& t ) | ||
| { | ||
| return isUniform<relaxed>( ~t ); | ||
| } | ||
| //************************************************************************************************* | ||
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| //================================================================================================= | ||
| // | ||
| // GLOBAL OPERATORS | ||
| // | ||
| //================================================================================================= | ||
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| //************************************************************************************************* | ||
| /*!\name Array operators */ | ||
| //@{ | ||
| template< typename MT > | ||
| inline std::ostream& operator<<( std::ostream& os, const Array<MT>& m ); | ||
| //@} | ||
| //************************************************************************************************* | ||
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| //************************************************************************************************* | ||
| /*!\brief Global output operator for dense and sparse tensors. | ||
| // \ingroup tensor | ||
| // | ||
| // \param os Reference to the output stream. | ||
| // \param m Reference to a constant tensor object. | ||
| // \return Reference to the output stream. | ||
| */ | ||
| template< typename MT > | ||
| inline std::ostream& operator<<( std::ostream& os, const Array<MT>& m ) | ||
| { | ||
| CompositeType_t<MT> tmp( ~m ); | ||
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| ArrayForEachGrouped( | ||
| tmp.dimensions(), | ||
| [&]( std::array< size_t, MT::num_dimensions() > const& dims ) { | ||
| os << std::setw( 12 ) << tmp( dims ) << " "; | ||
| }, | ||
| [&]( size_t ) { os << "("; }, | ||
| [&]( size_t i ) { | ||
| os << ")"; | ||
| if( i == 0 ) | ||
| os << "\n"; | ||
| } ); | ||
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| return os; | ||
| } | ||
| //************************************************************************************************* | ||
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| } // namespace blaze | ||
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| #endif |
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