olb::Expr Class Reference

Basic value-substitute enabling extraction of expression trees for code generation. More...

#include <expr.h>

Inheritance diagram for olb::Expr:

Collaboration diagram for olb::Expr:

Public Types
enum struct	Op {   Add , Mul , Sub , Div ,   Sqrt , Abs , Pow , Exp }

Public Member Functions
	Expr (const Expr &rhs)
	Expr (double v)
	Expr ()
	Expr (std::string name)
	Expr (Expr lhs, Op op, Expr rhs)
	Expr (Op op, Expr rhs)
std::string	describe () const
Expr &	operator+= (Expr rhs)
Expr &	operator-= (Expr rhs)
Expr &	operator*= (Expr rhs)
Expr &	operator/= (Expr rhs)

Detailed Description

Basic value-substitute enabling extraction of expression trees for code generation.

Definition at line 38 of file expr.h.

Member Enumeration Documentation

Op

enum struct olb::Expr::Op

strong

Enumerator
Add
Mul
Sub
Div
Sqrt
Abs
Pow
Exp

Definition at line 40 of file expr.h.

                 {
    Add, Mul, Sub, Div, Sqrt, Abs, Pow, Exp
  };

Constructor & Destructor Documentation

Expr() [1/6]

olb::Expr::Expr ( const Expr & rhs )

inline

Definition at line 106 of file expr.h.

                       :
    _payload(rhs._payload) { }

Expr() [2/6]

olb::Expr::Expr ( double v )

inline

Definition at line 109 of file expr.h.

                :
    _payload(Constant{v}) { }

Expr() [3/6]

olb::Expr::Expr ( )

inline

Definition at line 112 of file expr.h.

        :
    Expr(double{}) { }

Expr() [4/6]

olb::Expr::Expr ( std::string name )

inline

Definition at line 115 of file expr.h.

                      :
    _payload(Symbol{name}) { }

Expr() [5/6]

olb::Expr::Expr ( Expr lhs, Op op, Expr rhs )

inline

Definition at line 118 of file expr.h.

                                 :
    _payload(Binary(lhs, op, rhs)) { }

Expr() [6/6]

olb::Expr::Expr ( Op op, Expr rhs )

inline

Definition at line 121 of file expr.h.

                       :
    _payload(Unary(op, rhs)) { }

Member Function Documentation

describe()

std::string olb::Expr::describe ( ) const

inline

Definition at line 124 of file expr.h.

                             {
    std::string out;
    std::visit([&out](auto& x) {
      out = x.describe();
    }, _payload);
    return out;
  };

operator*=()

Expr & olb::Expr::operator*=

(

Expr

rhs

)

Definition at line 148 of file expr.h.

                               {
  _payload = Binary(*this, Op::Mul, rhs);
  return *this;
}

References Mul.

operator+=()

Expr & olb::Expr::operator+=

(

Expr

rhs

)

Definition at line 138 of file expr.h.

                               {
  _payload = Binary(*this, Op::Add, rhs);
  return *this;
}

References Add.

operator-=()

Expr & olb::Expr::operator-=

(

Expr

rhs

)

Definition at line 143 of file expr.h.

                               {
  _payload = Binary(*this, Op::Sub, rhs);
  return *this;
}

References Sub.

operator/=()

Expr & olb::Expr::operator/=

(

Expr

rhs

)

Definition at line 153 of file expr.h.

                               {
  _payload = Binary(*this, Op::Div, rhs);
  return *this;
}

References Div.

---

The documentation for this class was generated from the following file:

• src/utilities/expr.h