std::is_enum Template in C++

The std::is_enum template of C++ STL is used to check whether the given type is enum or not. It returns a boolean value showing the same. Syntax:

template <class T> struct is_enum;

Parameter: This template accepts single parameter T (Trait class) to check whether T is a enumeration type or not. Return Value: This template returns a boolean value as shown below:

• True: if the type is a enumeration.
• False: if the type is a non-enumeration.

Below programs illustrate the std::is_enum template in C++: Program 1:: Program 2::

is_enum:
GFG1: false
GFG2: true
int: false