LANGUAGE C++

Write a function that allows case-insensitive comparison of two strings. The strings shouldnotbe altered at all. Thereturnvalue should be analogous to that fromstrcmp:

s1 >>

s1 == s2 return something == 0

s1 > s2 return something > 0

(Thesereturnvalues can beshortintegers.)

Just remember that the comparisons are to be done in a manner thatignoresthe caseof the letters in the strings!

Place your new function in a library (strextra?) and call it something useful (strcmp_ncase?).

Write a driver program to test your function.

Add two defaulted arguments to your function which will allow the caller to request that you skip spaces and/or skip punctuation when doing the comparison.

Have numbers sorted properly even when they aren't justified with leading0's:

1

2

...

9

10

Instead of:

1

10

2

...

9

Have numbers sorted properly even if they aren't in the lead of the string:

a1

a2

...

a9

a10

b1

b2

...

Instead of:

a1

a10

a2

...

a9

b1

b10

b2