public/subjects/strisnegative

StrisNegative

Write a function called StrisNegative() that defines whether a number is negative or positive.

• Your function prints P if the number is positive
• Your function prints F if the number is negative
• If the number is zero, print 0.
• If it's not a number, print ('\n').
• Your program should always print ('\n') at the end of the output.

Expected function

func StrisNegative(str string) {

}

Usage

Here is a possible program to test your function :

package main

func main() {
	StrisNegative("585")
	StrisNegative("-58")
	StrisNegative("55s44")
	StrisNegative("101-1331")
	StrisNegative("5544-")
}

And its output :

$ go run .
P
N
!
!
!