The
std::is_rvalue_reference template of C++ STL is used to check whether the type is a rvalue reference type or not. It returns a boolean value showing the same.
Syntax:
template <class T > struct is_rvalue_reference;
Parameters: This template accepts a single parameter
T (Trait class) to check whether T is a rvalue reference type.
Return Value: This template returns a boolean value as shown below:
- True: if the type is a rvalue_reference type.
- False: if the type is a non-rvalue_reference type.
Below programs illustrate the std::is_lvalue_reference template in C++ STL:
Program 1:
Output:
is_rvalue_reference:
gfg: false
gfg&: false
gfg&&: true
Program 2:
Output:
is_rvalue_reference:
int: false
int&: false
int&&: true
char: false
char&: false
char&&: true
Program 3:
