iosobjective-cnsstringargumentsstringwithformat

How to pass NSString as arguments with formatWithString?

This is a fundamental part of my app, infact it is a function. 

-(void)appendArguments:(NSString *)argument {
NSString *temp = [NSString stringWithFormat:_path, argument;
}

But this is not possible. Here _path is an instance variable that holds a string with integer arguments. The string argument holds integers, for example:

_path = @"I got %d apples, ate %d, I am left with %d";
argument = @"7,3,7-3";
*temp = [NSString stringWithFormat:_path, argument;

Can we make an array of arguments as objects, and replace them with pointer argument.

My app is now on hold because of this.

Solution

  • You can use the va_list.

    void myLog(NSString *format, ...)
{
#ifdef DEBUG
    va_list ap;
    va_start(ap, format);
    NSString *string = [[NSString alloc] initWithFormat:format arguments:ap];
    fprintf(stdout, "%s", string.UTF8String);
    va_end(ap);
#endif
}


@implementation MyViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    myLog(@"%s, %@\n", __func__, self);
}