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iOS Objective-C Basics (Retired) Fundamentals of C Compile and Run

Posted by Meteb Alsaadoun
Meteb Alsaadoun
Courses Plus Student 1,538 Points

return value

include <stdio.h>

int main() {

// insert code here...
printf("Hello, World!\n");
return 0;

}

It says Hello, World however, it does not return an integar do any one knows how can I fix it ?

Daniel Santos
Daniel Santos
34,969 Points

Hi there,

Here is the thing. Main does actually return 0, but I want to first ask you. Are you expecting printf() to return an integer or something else?

1 Answer

Evan Demaris
Evan Demaris
64,262 Points
Evan Demaris
Evan Demaris
64,262 Points

Hi Meteb,

As Daniel mentioned, you actually are returning a 0, but a returned value isn't printed. You would see the 0 that's being returned if you included another line below and outside the function to print main().

A more detailed explanation, along with some really great examples of this, can be found in the Swift documentation.

Hope that helps, let me know if you have more questions about returning vs printing!