Queries size of the object or type. Used when actual size of the object must be known. Syntax

Allows customizing the template code for a given set of template arguments. Syntax

constexpr - specifies that the value of a variable or function can appear in

Initializes an aggregate from braced-init-list. Syntax

Floating point literal defines a compile-time constant whose value is specified in the source file. Syntax Floating-point

Syntax " (unescaped_character|

Binds a reference to an object. Syntax T

A union is a special class type that can hold only one of its non-static

Executes a statement repeatedly, until the value of condition becomes false. The test takes place after each iteration

The typedef declaration provides a way to create an alias that can be used anywhere in place of a (possibly complex) type name. Syntax