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97 lines
2.7 KiB
97 lines
2.7 KiB
// matrix/matrix-common.h
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// Copyright 2009-2011 Microsoft Corporation
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// See ../../COPYING for clarification regarding multiple authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
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// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
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// MERCHANTABLITY OR NON-INFRINGEMENT.
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// See the Apache 2 License for the specific language governing permissions and
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// limitations under the License.
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#ifndef KALDI_MATRIX_MATRIX_COMMON_H_
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#define KALDI_MATRIX_MATRIX_COMMON_H_
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// This file contains some #includes, forward declarations
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// and typedefs that are needed by all the main header
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// files in this directory.
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#include "base/kaldi-common.h"
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namespace kaldi {
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// this enums equal to CblasTrans and CblasNoTrans constants from CBLAS library
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// we are writing them as literals because we don't want to include here
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// matrix/kaldi-blas.h,
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// which puts many symbols into global scope (like "real") via the header f2c.h
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typedef enum {
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kTrans = 112, // = CblasTrans
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kNoTrans = 111 // = CblasNoTrans
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} MatrixTransposeType;
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typedef enum { kSetZero, kUndefined, kCopyData } MatrixResizeType;
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typedef enum {
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kDefaultStride,
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kStrideEqualNumCols,
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} MatrixStrideType;
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typedef enum {
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kTakeLower,
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kTakeUpper,
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kTakeMean,
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kTakeMeanAndCheck
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} SpCopyType;
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template <typename Real>
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class VectorBase;
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template <typename Real>
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class Vector;
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template <typename Real>
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class SubVector;
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template <typename Real>
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class MatrixBase;
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template <typename Real>
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class SubMatrix;
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template <typename Real>
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class Matrix;
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/// This class provides a way for switching between double and float types.
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template <typename T>
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class OtherReal {}; // useful in reading+writing routines
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// to switch double and float.
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/// A specialized class for switching from float to double.
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template <>
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class OtherReal<float> {
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public:
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typedef double Real;
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};
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/// A specialized class for switching from double to float.
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template <>
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class OtherReal<double> {
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public:
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typedef float Real;
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};
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typedef int32 MatrixIndexT;
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typedef int32 SignedMatrixIndexT;
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typedef uint32 UnsignedMatrixIndexT;
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// If you want to use size_t for the index type, do as follows instead:
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// typedef size_t MatrixIndexT;
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// typedef ssize_t SignedMatrixIndexT;
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// typedef size_t UnsignedMatrixIndexT;
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} // namespace kaldi
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#endif // KALDI_MATRIX_MATRIX_COMMON_H_
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