c++ program that is a calculator. It must take command line arguments.

The arguments are as follows:

1 optional arg -hexidecimal, default is decimal

1 mandatory operator ( + - / *)

finally at least one digit (0123456789), but could also be many

Output:

the result of math. Example output is in bold below.

It should read the command line arguments from left to right like Ex: * 3 3

would be 3 * 3 = 9.

+ 2 2 2 2 2

would be 2 + 2 + 2 + 2 + 2 = 10.

- 1

would be -1.

+ 2

would be 2.

Example input:

./calc -hexidecimal - 20 4

10

./calc - 20 4

16

./calc + 2 2

4

./calc -hexidecimal 3

3

./calc / 100 2 25 2

1

No printf(), scanf(), fopen(), and getchar() allowed.