#import <Foundation/Foundation.h>

int main() {
  CGFloat version = [@"4.2.1" floatValue];
  NSLog(@"version: %f", version);
}


O2Machina:~ karl$ gcc main.m -o test -framework Foundation
O2Machina:~ karl$ ./test
2010-12-29 11:23:56.520 test[44124:903] version: 4.200000