The access time when using registers is quite a bit lower than that of accessing content from any memory variable. So, to take advantage of this, content that is frequently used in any program is kept in registers. The register keyword is used to indicate the content that needs to be kept in these registers.
In this recipe, we will find out the cost of renting a car for a specified distance. The car rent not only depends on the distance but also on the type of car, that is, whether the car has air conditioning (AC) or not. The rent of the AC car per kilometer, the rent of the non-AC car per kilometer, and the service tax percentage values are all stored in register variables.
