Tensor_unary.h

Go to the documentation of this file.

/*************************************************************************************
 
    Grid physics library, www.github.com/paboyle/Grid 
 
    Source file: ./lib/tensors/Tensor_unary.h
 
    Copyright (C) 2015
 
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
Author: paboyle <paboyle@ph.ed.ac.uk>
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
    See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/*  END LEGAL */
#ifndef GRID_TENSOR_UNARY_H
#define GRID_TENSOR_UNARY_H
 
NAMESPACE_BEGIN(Grid);
 
#define UNARY(func)                         \
  template<class obj> accelerator_inline auto func(const iScalar<obj> &z) -> iScalar<obj> \
  {                                 \
    iScalar<obj> ret;                           \
    ret._internal = func( (z._internal));               \
    return ret;                             \
  }                                 \
  template<class obj,int N> accelerator_inline auto func(const iVector<obj,N> &z) -> iVector<obj,N> \
  {                                 \
    iVector<obj,N> ret;                         \
    for(int c1=0;c1<N;c1++){                        \
      ret._internal[c1] = func( (z._internal[c1]));         \
    }                                   \
    return ret;                             \
  }                                 \
  template<class obj,int N> accelerator_inline auto func(const iMatrix<obj,N> &z) -> iMatrix<obj,N> \
  {                                 \
    iMatrix<obj,N> ret;                         \
    for(int c1=0;c1<N;c1++){                        \
      for(int c2=0;c2<N;c2++){                      \
    ret._internal[c1][c2] = func( (z._internal[c1][c2]));       \
      }}                                \
    return ret;                             \
  }
 
 
#define BINARY_RSCALAR(func,scal)                   \
  template<class obj> accelerator_inline iScalar<obj> func(const iScalar<obj> &z,scal y) \
  {                                 \
    iScalar<obj> ret;                           \
    ret._internal = func(z._internal,y);                \
    return ret;                             \
  }                                 \
  template<class obj,int N> accelerator_inline iVector<obj,N> func(const iVector<obj,N> &z,scal y) \
  {                                 \
    iVector<obj,N> ret;                         \
    for(int c1=0;c1<N;c1++){                        \
      ret._internal[c1] = func(z._internal[c1],y);          \
    }                                   \
    return ret;                             \
  }                                 \
  template<class obj,int N> accelerator_inline  iMatrix<obj,N> func(const iMatrix<obj,N> &z, scal y) \
  {                                 \
    iMatrix<obj,N> ret;                         \
    for(int c1=0;c1<N;c1++){                        \
      for(int c2=0;c2<N;c2++){                      \
    ret._internal[c1][c2] = func(z._internal[c1][c2],y);        \
      }}                                \
    return ret;                             \
  }
 
UNARY(sqrt);
UNARY(sin);
UNARY(cos);
UNARY(asin);
UNARY(acos);
UNARY(log);
UNARY(exp);
UNARY(abs);
UNARY(Not);
 
 
template<class obj> accelerator_inline auto toReal(const iScalar<obj> &z) -> typename iScalar<obj>::Realified
{
  typename iScalar<obj>::Realified ret;
  ret._internal = toReal(z._internal);
  return ret;
}
template<class obj,int N> accelerator_inline auto toReal(const iVector<obj,N> &z) -> typename iVector<obj,N>::Realified
{
  typename iVector<obj,N>::Realified ret;
  for(int c1=0;c1<N;c1++){  
    ret._internal[c1] = toReal(z._internal[c1]); 
  }
  return ret;
}
template<class obj,int N> accelerator_inline auto toReal(const iMatrix<obj,N> &z) -> typename iMatrix<obj,N>::Realified
{
  typename iMatrix<obj,N>::Realified ret;
  for(int c1=0;c1<N;c1++){
    for(int c2=0;c2<N;c2++){
      ret._internal[c1][c2] = toReal(z._internal[c1][c2]);
    }}
  return ret;
}
 
template<class obj> accelerator_inline auto toComplex(const iScalar<obj> &z) -> typename iScalar<obj>::Complexified
{
  typename iScalar<obj>::Complexified ret;
  ret._internal = toComplex(z._internal);
  return ret;
}
template<class obj,int N> accelerator_inline auto toComplex(const iVector<obj,N> &z) -> typename iVector<obj,N>::Complexified
{
  typename iVector<obj,N>::Complexified ret;
  for(int c1=0;c1<N;c1++){  
    ret._internal[c1] = toComplex(z._internal[c1]); 
  }
  return ret;
}
template<class obj,int N> accelerator_inline auto toComplex(const iMatrix<obj,N> &z) -> typename iMatrix<obj,N>::Complexified
{
  typename iMatrix<obj,N>::Complexified ret;
  for(int c1=0;c1<N;c1++){
    for(int c2=0;c2<N;c2++){
      ret._internal[c1][c2] = toComplex(z._internal[c1][c2]);
    }}
  return ret;
}
 
BINARY_RSCALAR(div,Integer);
BINARY_RSCALAR(mod,Integer);
BINARY_RSCALAR(pow,RealD);
BINARY_RSCALAR(pow,RealF);
 
#undef UNARY
#undef BINARY_RSCALAR
 
NAMESPACE_END(Grid);
 
#endif