Time_Difference Program

Program that displays the difference between 2 dates (mm/dd/yyyy).

Structs Date

Struct to hold certain info either for storing or for making it easier to implement certain functions.

• int month: Stores numeric representation of a date's month
• int day: Stores numeric representation of a date's day
• int year: Stores numeric representation of a date's year
• int days_in_month: Stores how many days exists in the month
• int is_leap_year: Flag for whether the provided year is a leap year
• int success: Flag for whether struct was successfully filled without error

Functions

is_leap_year()

Returns an int base on whether a year fulfills the conditions of a leap year.

• int *year: Year that will be checked

get_date()

Fills out and returns struct date based on a provided date.

• const char *date_str: Date that will be used

date_difference()

Calculates and returns int based on how many days have passed

• struct date start_date: Start Date data
• struct date end_date: End Date data

get_total_difference()

Runs the above functions all at once and returns an int based on the final results.

• char *start_date: Start Date
• char *end_date End Date

Some additional tests includes:

• Whether both dates matches the expected string length of 10
• Whether both struct date.success returns a success.