text: ///////////////////////////////////////////////////////////////////////
  // File:        dotproductsse.h
  // Description: Architecture-specific dot-product function.
  // Author:      Ray Smith
  // Created:     Wed Jul 22 10:57:05 PDT 2015
  //
  // (C) Copyright 2015, Google Inc.
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  // http://www.apache.org/licenses/LICENSE-2.0
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  ///////////////////////////////////////////////////////////////////////
  
  #ifndef TESSERACT_ARCH_DOTPRODUCTSSE_H_
  #define TESSERACT_ARCH_DOTPRODUCTSSE_H_
  
  #include "host.h"
  
  namespace tesseract {
  
  // Computes and returns the dot product of the n-vectors u and v.
  // Uses Intel SSE intrinsics to access the SIMD instruction set.
  double DotProductSSE(const double* u, const double* v, int n);
  // Computes and returns the dot product of the n-vectors u and v.
  // Uses Intel SSE intrinsics to access the SIMD instruction set.
  int32_t IntDotProductSSE(const int8_t* u, const int8_t* v, int n);
  
  }  // namespace tesseract.
  
  #endif  // TESSERACT_ARCH_DOTPRODUCTSSE_H_
  