Authors:
Walter Savitch ,julia Lobur
Chapter:
Procedural Abstraction And Functions That Return A Value
Exercise:
Self-test Exercises
Question:8 | ISBN:9780321531346 | Edition: 7
Question
Write a function declaration and a function definition for a function that
takes one argument of type double. The function returns the character
value 'P' if its argument is positive and returns 'N' if its argument is zero
or negative.
Answer
The function declaration is:
char positive_test(double number);
//Returns 'P' if number is positive.
//Returns 'N' if number is negative or zero.
The function definition is:
char positive_test(double number)
{
if (number > 0)
return 'P';
else
return 'N';
}