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lib/lattice/Lattice_comparison_utils.h
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@ -1,4 +1,4 @@
/************************************************************************************* /*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid Grid physics library, www.github.com/paboyle/Grid
@ -24,195 +24,195 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/ *************************************************************************************/
/* END LEGAL */ /* END LEGAL */
#ifndef GRID_COMPARISON_H #ifndef GRID_COMPARISON_H
#define GRID_COMPARISON_H #define GRID_COMPARISON_H
namespace Grid { NAMESPACE_BEGIN(Grid);
///////////////////////////////////////// /////////////////////////////////////////
// This implementation is a bit poor. // This implementation is a bit poor.
// //
// Only support relational logical operations (<, > etc) // Only support relational logical operations (<, > etc)
// on scalar objects. Therefore can strip any tensor structures. // on scalar objects. Therefore can strip any tensor structures.
// //
// Should guard this with isGridTensor<> enable if? // Should guard this with isGridTensor<> enable if?
///////////////////////////////////////// /////////////////////////////////////////
// //
// Generic list of functors // Generic list of functors
// //
template<class lobj,class robj> class veq { template<class lobj,class robj> class veq {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) == (rhs); return (lhs) == (rhs);
} }
}; };
template<class lobj,class robj> class vne { template<class lobj,class robj> class vne {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) != (rhs); return (lhs) != (rhs);
} }
}; };
template<class lobj,class robj> class vlt { template<class lobj,class robj> class vlt {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) < (rhs); return (lhs) < (rhs);
} }
}; };
template<class lobj,class robj> class vle { template<class lobj,class robj> class vle {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) <= (rhs); return (lhs) <= (rhs);
} }
}; };
template<class lobj,class robj> class vgt { template<class lobj,class robj> class vgt {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) > (rhs); return (lhs) > (rhs);
} }
}; };
template<class lobj,class robj> class vge { template<class lobj,class robj> class vge {
public: public:
vInteger operator()(const lobj &lhs, const robj &rhs) vInteger operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) >= (rhs); return (lhs) >= (rhs);
} }
}; };
// Generic list of functors // Generic list of functors
template<class lobj,class robj> class seq { template<class lobj,class robj> class seq {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) == (rhs); return (lhs) == (rhs);
} }
}; };
template<class lobj,class robj> class sne { template<class lobj,class robj> class sne {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) != (rhs); return (lhs) != (rhs);
} }
}; };
template<class lobj,class robj> class slt { template<class lobj,class robj> class slt {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) < (rhs); return (lhs) < (rhs);
} }
}; };
template<class lobj,class robj> class sle { template<class lobj,class robj> class sle {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) <= (rhs); return (lhs) <= (rhs);
} }
}; };
template<class lobj,class robj> class sgt { template<class lobj,class robj> class sgt {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) > (rhs); return (lhs) > (rhs);
} }
}; };
template<class lobj,class robj> class sge { template<class lobj,class robj> class sge {
public: public:
Integer operator()(const lobj &lhs, const robj &rhs) Integer operator()(const lobj &lhs, const robj &rhs)
{ {
return (lhs) >= (rhs); return (lhs) >= (rhs);
} }
}; };
////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////////
// Integer and real get extra relational functions. // Integer and real get extra relational functions.
////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////////
template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0> template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0>
inline vInteger Comparison(sfunctor sop,const vsimd & lhs, const vsimd & rhs) inline vInteger Comparison(sfunctor sop,const vsimd & lhs, const vsimd & rhs)
{ {
typedef typename vsimd::scalar_type scalar; typedef typename vsimd::scalar_type scalar;
std::vector<scalar> vlhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation std::vector<scalar> vlhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation
std::vector<scalar> vrhs(vsimd::Nsimd()); std::vector<scalar> vrhs(vsimd::Nsimd());
std::vector<Integer> vpred(vsimd::Nsimd()); std::vector<Integer> vpred(vsimd::Nsimd());
vInteger ret; vInteger ret;
extract<vsimd,scalar>(lhs,vlhs); extract<vsimd,scalar>(lhs,vlhs);
extract<vsimd,scalar>(rhs,vrhs); extract<vsimd,scalar>(rhs,vrhs);
for(int s=0;s<vsimd::Nsimd();s++){ for(int s=0;s<vsimd::Nsimd();s++){
vpred[s] = sop(vlhs[s],vrhs[s]); vpred[s] = sop(vlhs[s],vrhs[s]);
} }
merge<vInteger,Integer>(ret,vpred); merge<vInteger,Integer>(ret,vpred);
return ret; return ret;
} }
template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0> template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0>
inline vInteger Comparison(sfunctor sop,const vsimd & lhs, const typename vsimd::scalar_type & rhs) inline vInteger Comparison(sfunctor sop,const vsimd & lhs, const typename vsimd::scalar_type & rhs)
{ {
typedef typename vsimd::scalar_type scalar; typedef typename vsimd::scalar_type scalar;
std::vector<scalar> vlhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation std::vector<scalar> vlhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation
std::vector<Integer> vpred(vsimd::Nsimd()); std::vector<Integer> vpred(vsimd::Nsimd());
vInteger ret; vInteger ret;
extract<vsimd,scalar>(lhs,vlhs); extract<vsimd,scalar>(lhs,vlhs);
for(int s=0;s<vsimd::Nsimd();s++){ for(int s=0;s<vsimd::Nsimd();s++){
vpred[s] = sop(vlhs[s],rhs); vpred[s] = sop(vlhs[s],rhs);
} }
merge<vInteger,Integer>(ret,vpred); merge<vInteger,Integer>(ret,vpred);
return ret; return ret;
} }
template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0> template<class sfunctor, class vsimd,IfNotComplex<vsimd> = 0>
inline vInteger Comparison(sfunctor sop,const typename vsimd::scalar_type & lhs, const vsimd & rhs) inline vInteger Comparison(sfunctor sop,const typename vsimd::scalar_type & lhs, const vsimd & rhs)
{ {
typedef typename vsimd::scalar_type scalar; typedef typename vsimd::scalar_type scalar;
std::vector<scalar> vrhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation std::vector<scalar> vrhs(vsimd::Nsimd()); // Use functors to reduce this to single implementation
std::vector<Integer> vpred(vsimd::Nsimd()); std::vector<Integer> vpred(vsimd::Nsimd());
vInteger ret; vInteger ret;
extract<vsimd,scalar>(rhs,vrhs); extract<vsimd,scalar>(rhs,vrhs);
for(int s=0;s<vsimd::Nsimd();s++){ for(int s=0;s<vsimd::Nsimd();s++){
vpred[s] = sop(lhs,vrhs[s]); vpred[s] = sop(lhs,vrhs[s]);
} }
merge<vInteger,Integer>(ret,vpred); merge<vInteger,Integer>(ret,vpred);
return ret; return ret;
} }
#define DECLARE_RELATIONAL(op,functor) \ #define DECLARE_RELATIONAL(op,functor) \
template<class vsimd,IfSimd<vsimd> = 0>\ template<class vsimd,IfSimd<vsimd> = 0> \
inline vInteger operator op (const vsimd & lhs, const vsimd & rhs)\ inline vInteger operator op (const vsimd & lhs, const vsimd & rhs) \
{\ { \
typedef typename vsimd::scalar_type scalar;\ typedef typename vsimd::scalar_type scalar; \
return Comparison(functor<scalar,scalar>(),lhs,rhs);\ return Comparison(functor<scalar,scalar>(),lhs,rhs); \
}\ } \
template<class vsimd,IfSimd<vsimd> = 0>\ template<class vsimd,IfSimd<vsimd> = 0> \
inline vInteger operator op (const vsimd & lhs, const typename vsimd::scalar_type & rhs) \ inline vInteger operator op (const vsimd & lhs, const typename vsimd::scalar_type & rhs) \
{\ { \
typedef typename vsimd::scalar_type scalar;\ typedef typename vsimd::scalar_type scalar; \
return Comparison(functor<scalar,scalar>(),lhs,rhs);\ return Comparison(functor<scalar,scalar>(),lhs,rhs); \
}\ } \
template<class vsimd,IfSimd<vsimd> = 0>\ template<class vsimd,IfSimd<vsimd> = 0> \
inline vInteger operator op (const typename vsimd::scalar_type & lhs, const vsimd & rhs) \ inline vInteger operator op (const typename vsimd::scalar_type & lhs, const vsimd & rhs) \
{\ { \
typedef typename vsimd::scalar_type scalar;\ typedef typename vsimd::scalar_type scalar; \
return Comparison(functor<scalar,scalar>(),lhs,rhs);\ return Comparison(functor<scalar,scalar>(),lhs,rhs); \
}\ } \
template<class vsimd>\ template<class vsimd> \
inline vInteger operator op(const iScalar<vsimd> &lhs,const iScalar<vsimd> &rhs)\ inline vInteger operator op(const iScalar<vsimd> &lhs,const iScalar<vsimd> &rhs) \
{ \ { \
return lhs._internal op rhs._internal; \ return lhs._internal op rhs._internal; \
} \ } \
template<class vsimd>\ template<class vsimd> \
inline vInteger operator op(const iScalar<vsimd> &lhs,const typename vsimd::scalar_type &rhs) \ inline vInteger operator op(const iScalar<vsimd> &lhs,const typename vsimd::scalar_type &rhs) \
{ \ { \
return lhs._internal op rhs; \ return lhs._internal op rhs; \
} \ } \
template<class vsimd>\ template<class vsimd> \
inline vInteger operator op(const typename vsimd::scalar_type &lhs,const iScalar<vsimd> &rhs) \ inline vInteger operator op(const typename vsimd::scalar_type &lhs,const iScalar<vsimd> &rhs) \
{ \ { \
return lhs op rhs._internal; \ return lhs op rhs._internal; \
} }
DECLARE_RELATIONAL(<,slt); DECLARE_RELATIONAL(<,slt);
@ -224,7 +224,7 @@ DECLARE_RELATIONAL(!=,sne);
#undef DECLARE_RELATIONAL #undef DECLARE_RELATIONAL
} NAMESPACE_END(Grid);
#endif #endif