Is it possible to NSLog() without the time and date stamps, and the automatic newline? [duplicate]

Does NSLog() have variants that print without the time and date stamps, and the automatic newline?

Thanks. Now with following code, I can print NSString, cString, or objects:

#import <Foundation/Foundation.h>
#import <stdio.h>

int main (int argc, const char * argv[]) {
  NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

  NSString *s = @"Hello, World!";
  NSDate *today = [NSDate date];

  NSLog(@"%@", s);
  printf("%s at %s", [s UTF8String], [[today description] UTF8String]);

  [pool drain];
  return 0;
}  

Solution 1:

Use printf() instead of NSLog()

Solution 2:

It bothered me too, so I wrote a function to replace NSLog() and printf():

void IFPrint (NSString *format, ...) {
    va_list args;
    va_start(args, format);

    fputs([[[[NSString alloc] initWithFormat:format arguments:args] autorelease] UTF8String], stdout);

    va_end(args);
}

Then, you can just use it instead of NSLog() (e.g. IFPrint(@"Current date: %@", [NSDate date])), but it won't print out any timestamps or a newline, and you don't have to mess around with C strings and arrays, and whatnot. It's pretty handy, I'd say.

If you want, check out my full code (I've also written a replacement for fprintf, scanf, and fscanf) here.
(There's also an SO topic about it here).

Solution 3:

This code will work

#ifdef DEBUG
    #define NSLog(FORMAT, ...) fprintf(stderr,"%s\n", [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);
#else
    #define NSLog(...) {}
#endif

Solution 4:

Define a macro

#if __has_feature(objc_arc)
  #define DLog(format, ...) CFShow((__bridge CFStringRef)[NSString stringWithFormat:format, ## __VA_ARGS__]);
#else
  #define DLog(format, ...) CFShow([NSString stringWithFormat:format, ## __VA_ARGS__]);
#endif

And use this macro in you code like

NSLog(@"Content with time stamp");
DLog(@"Content without time stamp");

Here is the output of console

NSLog->2014-01-28 10:43:17.873 TestApp[452:60b] Content with time stamp
DLog -> Content without time stamp

P.S.

If anyone wants Custom Logs which gives you more info like method name / line number etc. can download the open source MLog.h on GitHub.

Solution 5:

I like the Itai's solution. I just modified the code to use CFShow under ARC environment.

void CFLog(NSString *format, ...)
{
    va_list args;
    va_start(args, format);

    CFShow((__bridge CFStringRef)[[NSString alloc] initWithFormat:format arguments:args]);

    va_end(args);
}