Binary Operators Summary (C++)

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These are the binary operators in C++Builder:

Arithmetic Operators

For more information, see Arithmetic Operators (Unary).

Arithmetic Operator	Description	Arithmetic Operator	Description
+	Binary plus (add)	-	Binary minus (subtract)
*	Multiply	/	Divide
%	Remainder (modulus)

Bitwise Operators

For more information, see Bitwise Operators.

Bitwise Operator	Description	Bitwise Operator	Description
<<	Shift left	>>	Shift right
&	Bitwise AND	^	Bitwise XOR (exclusive OR)
|	Bitwise inclusive OR

Logical Operators

For more information, see Logical Operators.

Logical Operator	Description
&&	Logical AND

Assignment Operators

For more information, see:

• Assignment Operators
• Alternative Representations of Tokens (C++)

Assignment Operator	Description	Assignment Operator	Description
=	Assignment	*=	Assign product
/=	Assign quotient	%=	Assign remainder (modulus)
+=	Assign sum	-=	Assign difference
<<=	Assign left shift	>>=	Assign right shift
&=	Assign bitwise AND	^=	Assign bitwise XOR
|=	Assign bitwise OR

Relational Operators

For more information, see:

• Relational Operators (C++)
• Alternative Representations of Tokens (C++)

Relational Operator	Description	Relational Operator	Description
<	Less than	>	Greater than
<=	Less than or equal to	>=	Greater than or equal to
==	Equal to	!=	Not equal to

Component Selection Operators

For more information, see Overloading the Class Member Access Operator ->.

Component Selection Operator	Description
.	Direct component selector
->	Indirect component selector

Class Member Operators

For more information, see:

• Scope Resolution Operator
• Reference/Dereference Operators

Class Member Operator	Description
::	Scope access/resolution Use the scope access (or resolution) operator :: (two colons) to access a global (or file duration) name even if it is hidden by a local redeclaration of that name.
.*	Dereference pointer to class member Use the .* operator to dereference pointers to class members. The first operand must be a class type. If the type of the first operand is class type TFoo, or is a class that has been derived from class type TFoo, the second operand must be a pointer to a member of a class type TFoo.
->*	Dereference pointer to class member Use the ->* operator to dereference pointers to class members. The first operand must be a pointer to a class type. If the type of the first operand is a pointer to class type TFoo, or is a pointer to a class derived from class type TFoo, the second operand must be a pointer to a member of class type TFoo.

Example

The pointer-to-member operators are probably best explained with an example such as this one:

#include <iostream>

class TFoo {
public:
  void func() {
    std::cout << __func__ << std::endl;
  }
  int data;
};

void (TFoo::*pmfn)() = &TFoo::func;
int TFoo::*pmd = &TFoo::data;

int main() {
  TFoo foo;
  TFoo *pfoo = &foo;

  // Call func with foo/pfoo
  (foo.*pmfn)();   // With object
  (pfoo->*pmfn)(); // With pointer

  // Set/read data with object and ptr respectively
  foo.*pmd = 123;
  std::cout << "data=" << pfoo->*pmd << std::endl;

  return 0;
}

Conditional Operators

For more information, see Conditional Operators.

Conditional Operator	Description
?:	Actually a ternary operator. For example: a ? x : y means "if a then x else y".

Comma Operator

For more information, see Comma Operator.

Comma Operator	Description
,	Evaluate

Other C++ Specific Operators

• const_cast (typecast Operator)
• delete
• dynamic_cast (C++ typecast Operator)
• new
• reinterpret_cast (typecast Operator)
• static_cast (C++ typecast Operator)
• sizeof
• typeid

See Also

• Arithmetic Operators
• Bitwise Operators
• Logical Operators
• Assignment Operators
• Relational Operators (C++)
• Overloading Operator Functions
• Overloading the Class Member Access Operator ->
• Conditional Operators
• Scope Resolution Operator
• Comma Operator
• Unary Operators