Example 1

int age; // variable set up
then later in the program
age = 39;

The value 39 is pulled or fetched (Rvalue) and stored into the variable named age (Lvalue); destroying the value previously stored in that variable.

Example 2

int age; // variable set up
int voting_age = 18; // variable set up with initialization
then later in the program
age = voting_age;
The value 18 is pulled or fetched from the variable named voting_age and stored into the variable named age is an example of r-value.


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