Keywords in C++

The keywords implement specific C++ language feature. They are explicitly reserved identifiers and cannot be used as names for the program variables or other user-define program elements.

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Asm	To declare that a block of code is to be passed to the assembler
Auto	A storage class specifier that is used to define objects in a block
Bool	Boolean false-true type that can hold either the false or true literals
Break	Terminates a switch statement or a loop
Case	Used specifically within a switch statement to specify a match for the statement's expression
Catch	Specifies actions taken when an exception occurs
Char	Fundamental data type that defines character objects
Class	To declare a user-defined type that encapsulates data members and operations or member functions
Const	To define objects whose value will not alter throughout the lifetime of program execution
Const_Cast	const_cast is used to cast away the constness of variables.
Continue	Transfers control to the start of a loop
Default	Handles expression values in a switch statement that are not handled by case
Delete	Memory deallocation operator
Do	Indicates the start of a do-while statement in which the sub-statement is executed repeatedly until the value of the expression is logical-false
Double	Fundamental data type used to define a floating-point number
Dynamic_Cast	The dynamic_cast keyword casts a datum from one pointer or reference type to another, performing a runtime check to ensure the validity of the cast
Else	Used specifically in if-el.se statement
Enum	To declare a user-defined enumeration data type
Explicit	To declare an explicit constructor
Export	Allows a template definition to be accessible from another translation unit.
Extern	An identifier specified as extern has external linkage to the block
False	Boolean literal of value zero
Float	Fundamental data type used to define a floating-point number
For	Indicates the start of a for statement to achieve repetitive control
For	A class or operation whose implementation can access the private data members of a class
Goto	Transfer control to a specified label
If	Indicate start of an if statement to achieve selective control
Inline	A function specifier that indicates to the compiler that inline substitution of the function body is to be preferred to the usual function call implementation
Int	Fundamental data type used to define integer objects
Long	A data type modifier that defines a 32-bit int or an extended double
Mutable	Allows an object member to override constness
Namespace	Defines a scope
New	Memory allocation operator
Operator	Overloads a c++ operator with a new declaration
Private	Declares class members which are not visible outside the class
Protected	Declares class members which are private except to derived classes
Public	Declares class members which are visible outside the class
Register	A storage class specifier that is an auto specifier, but which also indicates to the compiler that an object will be frequently used and should therefore be kept in a register
Return	Returns an object to a function's caller
Short	A data type modifier that defines a 16-bit int number
Signed	A data type modifier that indicates an object's sign is to be stored in the high-order bit
Sizeof	Returns the size of an object in bytes
Static	The lifetime of an object defined static exists throughout the lifetime of program execution
Struct	To declare new types that encapsulate both data and member functions
Switch	Switch statement
Template	Parametrised or generic type
This	A class pointer which points to an object or instance of the class
Throw	Generate an exception
True	Boolean literal of value one
Try	Indicates start of a block of exception handlers
Typedef	Synonym for another integral or user-defined type
Typeid	The typeid () operator returns the type of its operand
Typename	Within a template typename indicates that a qualified name denotes a type
Union	Similar to a structure, struct, in that it can hold different types of data, but a union can hold only one of its members at a given time.
Unsigned	A data type modifier that indicates the high-order bit is to be used for an object
Using	using declaration and using directive
Virtual	A function specifier that declares a member function of a class which will be redefined by a derived class
Void	Absent of a type or function parameter list
Volatile	Define an object which may vary in value in a way that is undetectable to the compiler
Wchar_t	Wide character type
While	Start of a while statement and end of a do-while statement

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