objective-c gettimeofday must be imported?

Question

I am trying to use gettimeofday in Objective-C. However, i get these two issues:

1. "Implicit declaration of function 'gettimeofday' is invalid in C99"

2. "Declaration of 'gettimeofday' must be imported from module 'Darwin.POSIX.sys.time' before it is required"

I have performed these imports:

#import <UIKit/UIKit.h>
#include <time.h>

But the issue still persists?

Thanks in advance. /JBJ

Answer 1

import <sys/time.h> instead of #include <time.h>

in C time.h declares functions like time(), clock() etc; and In POSIX (OS specification) it has all C structure and macro and it is extended with time interval functions in sys/time.h .