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iOS Objective-C Basics (Retired) Functional Programming in C Scope

Posted by moadw
moadw
Courses Plus Student 273 Points

what is the different to declare a function with int or void?

On the previous functions tutorial we declared the function with int, but now we are declaring it with void. What is the difference? I think those little new keywords we find on every course must be explained by the instructor.

2 Answers

Ron McCranie
Ron McCranie
7,837 Points
Ron McCranie
Ron McCranie
7,837 Points

That's the return type. You're telling Objective-C what type of value to expect back from the function. Int means to expect an integer, void means to NOT expect anything to be returned.

moadw
moadw
Courses Plus Student 273 Points

Although nothing is expected, is it possible to return something from a void function?

hanna
hanna
19,176 Points
hanna
hanna
19,176 Points

Hello moadw,

void function should not return a value, otherwise there will be an error, and the program won't work.