Objective-C Language Predefined Macros Predefined Macros
Example
#import <Foundation/Foundation.h>
int main()
{
NSLog(@"File :%s\n", __FILE__ );
NSLog(@"Date :%s\n", __DATE__ );
NSLog(@"Time :%s\n", __TIME__ );
NSLog(@"Line :%d\n", __LINE__ );
NSLog(@"ANSI :%d\n", __STDC__ );
return 0;
}
When the above code in a file main.m is compiled and executed, it produces the following result:
2013-09-14 04:46:14.859 demo[20683] File :main.m
2013-09-14 04:46:14.859 demo[20683] Date :Sep 14 2013
2013-09-14 04:46:14.859 demo[20683] Time :04:46:14
2013-09-14 04:46:14.859 demo[20683] Line :8
2013-09-14 04:46:14.859 demo[20683] ANSI :1
