how to convert string to int in objective c

i am trying to display annotations in map. I have the lat and longi in string format. now i just need to convert it to int.

    NSString *s= @"18.65799";
    location1.latitude =[s intValue];
    NSLog(@"1%d",[s intValue]);
            NSString *s1= @"73.774262";
    location1.longitude=[s1 intValue];

But when i display [s intValue]the out put is 118. and output for NSLog(@"1%@",location1.latitude) is null;

Plea开发者_如何学Pythonse help.

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Change:

NSLog(@"1%d",[s intValue]);

to:

NSLog(@"%d", [s intValue]);

Similarly for s1:

NSLog(@"%d", [s1 intValue]);