tensor_expr.h File Reference

definitions of abstract expressions and expressions template More...

#include "tensor_base.h"

Go to the source code of this file.

Classes
struct	mshadow::expr::ExpEngine< Saver, Container >
	expression engine that actually interprets these expressions this is a function template that needed to be implemented for specific expressions More...
class	mshadow::expr::ContainerExp< Container >
	base class of all variables, that can be assigned to values More...
struct	mshadow::expr::Exp< SubType, exp_type >
	base class for expression More...
struct	mshadow::expr::ScalarExp
	scalar expression More...
struct	mshadow::expr::TransposeExp< EType >
	represent a transpose expression of a container More...
class	mshadow::expr::ContainerExp< Container >
	base class of all variables, that can be assigned to values More...
struct	mshadow::expr::DotExp< TA, TB, ltrans, rtrans >
	matrix multiplication expression dot( lhs[.T], rhs[.T] ) More...
struct	mshadow::expr::BinaryMapExp< OP, TA, TB, etype >
	binary map expression lhs [op] rhs More...
struct	mshadow::expr::UnaryMapExp< OP, TA, etype >
	unary map expression op(src) More...

Namespaces
	mshadow
	namespace for mshadow
	mshadow::expr
	namespace for abstract expressions and expressions template, have no dependecy on tensor.h, These data structure takes no charge in computations, they are only used to define operations and represent expression in a symbolic way
	mshadow::expr::type
	type of expressions

Functions
template<typename TA , typename TB >
DotExp< TA, TB, false, false >	mshadow::expr::dot (const ContainerExp< TA > &lhs, const ContainerExp< TB > &rhs)
	dot operator def
template<typename TA , typename TB >
DotExp< TA, TB, true, false >	mshadow::expr::dot (const TransposeExp< TA > &lhs, const ContainerExp< TB > &rhs)
	dot operator def
template<typename TA , typename TB >
DotExp< TA, TB, false, true >	mshadow::expr::dot (const ContainerExp< TA > &lhs, const TransposeExp< TB > &rhs)
	dot operator def
template<typename TA , typename TB >
DotExp< TA, TB, true, true >	mshadow::expr::dot (const TransposeExp< TA > &lhs, const TransposeExp< TB > &rhs)
	dot operator def
template<typename TA , typename TB , bool ltrans, bool rtrans>
DotExp< TA, TB, ltrans, rtrans >	mshadow::expr::operator* (const DotExp< TA, TB, ltrans, rtrans > &lhs, real_t rhs)
	dot operator def
template<typename TA , typename TB , bool ltrans, bool rtrans>
DotExp< TA, TB, ltrans, rtrans >	mshadow::expr::operator* (real_t lhs, const DotExp< TA, TB, ltrans, rtrans > &rhs)
	scale of dot operation
template<typename OP , typename TA , typename TB , int ta, int tb>
BinaryMapExp< OP, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::MakeExp (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	make expression
template<typename OP , typename TA , typename TB , int ta, int tb>
BinaryMapExp< OP, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::F (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	short hand for MakeExp, usage F<op>(lhs, rhs). create a binary operation expression More...
template<typename OP , typename TA , int ta>
BinaryMapExp< OP, TA, ScalarExp,(ta|type::kMapper) >	mshadow::expr::F (const Exp< TA, ta > &lhs, const ScalarExp &rhs)
	operator overload for const
template<typename OP , typename TB , int tb>
BinaryMapExp< OP, ScalarExp, TB,(tb|type::kMapper) >	mshadow::expr::F (const ScalarExp &lhs, const Exp< TB, tb > &rhs)
	operator overload for const
template<typename TA , typename TB , int ta, int tb>
BinaryMapExp< op::plus, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::operator+ (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TA , typename TB , int ta, int tb>
BinaryMapExp< op::minus, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::operator- (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TA , typename TB , int ta, int tb>
BinaryMapExp< op::mul, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::operator* (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TA , typename TB , int ta, int tb>
BinaryMapExp< op::div, TA, TB,(ta|tb|type::kMapper) >	mshadow::expr::operator/ (const Exp< TA, ta > &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TA , int ta>
BinaryMapExp< op::plus, TA, ScalarExp,(ta|type::kMapper) >	mshadow::expr::operator+ (const Exp< TA, ta > &lhs, const ScalarExp &rhs)
	operator overload
template<typename TA , int ta>
BinaryMapExp< op::minus, TA, ScalarExp,(ta|type::kMapper) >	mshadow::expr::operator- (const Exp< TA, ta > &lhs, const ScalarExp &rhs)
	operator overload
template<typename TA , int ta>
BinaryMapExp< op::mul, TA, ScalarExp,(ta|type::kMapper) >	mshadow::expr::operator* (const Exp< TA, ta > &lhs, const ScalarExp &rhs)
	operator overload
template<typename TA , int ta>
BinaryMapExp< op::div, TA, ScalarExp,(ta|type::kMapper) >	mshadow::expr::operator/ (const Exp< TA, ta > &lhs, const ScalarExp &rhs)
	operator overload
template<typename TB , int tb>
BinaryMapExp< op::plus, ScalarExp, TB,(tb|type::kMapper) >	mshadow::expr::operator+ (const ScalarExp &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TB , int tb>
BinaryMapExp< op::minus, ScalarExp, TB,(tb|type::kMapper) >	mshadow::expr::operator- (const ScalarExp &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TB , int tb>
BinaryMapExp< op::mul, ScalarExp, TB,(tb|type::kMapper) >	mshadow::expr::operator* (const ScalarExp &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename TB , int tb>
BinaryMapExp< op::div, ScalarExp, TB,(tb|type::kMapper) >	mshadow::expr::operator/ (const ScalarExp &lhs, const Exp< TB, tb > &rhs)
	operator overload
template<typename OP , typename TA , int ta>
UnaryMapExp< OP, TA,(ta|type::kMapper) >	mshadow::expr::MakeExp (const Exp< TA, ta > &src)
	make expression
template<typename OP , typename TA , int ta>
UnaryMapExp< OP, TA,(ta|type::kMapper) >	mshadow::expr::F (const Exp< TA, ta > &src)
	short hand for MakeExp, usage F<op>(src), create a unary operation expression More...

Variables
const int	mshadow::expr::type::kContainer = 0
	this expression directly correspnds to a data class
const int	mshadow::expr::type::kMapper = 1
	this only contains element-wise vector operations
const int	mshadow::expr::type::kComplex = 3
	othercase: e.g dot product

Detailed Description

definitions of abstract expressions and expressions template

Author

Tianqi Chen, Bing Xu