Screw all of the bullshit llvm warnings in UIColor-Utilities

UIColor+JBSUtilities.m

#import <UIKit/UIKit.h>

@interface UIColor (JBSUtilities)
/**
 Give it a hex string, e.g. "#FFEEDD" or "FFEEDD", get back the UIColor
 representation.
 
 @param stringToConvert A NSASCIIStringEncoding hex string.
 
 @return The UIColor represented by the hex string.
 */
+ (UIColor *)colorWithHexString:(NSString *)stringToConvert;
@end

@implementation UIColor (JBSUtilities)
+ (UIColor *)colorWithHexString:(NSString *)stringToConvert
{
  NSString *str = [[stringToConvert
                   stringByReplacingOccurrencesOfString:@"#"
                   withString:@""] uppercaseString];
  const char *hex = [str cStringUsingEncoding:NSASCIIStringEncoding];
  
  uint32_t bytes = strtoq(hex, NULL, 16);
  int red = (bytes >> 16) & 0xFF;
  int green = (bytes >> 8) & 0xFF;
  int blue = bytes & 0xFF;
  
  return [UIColor
          colorWithRed:(red / 255.0f)
          green:(green / 255.0f)
          blue:(blue / 255.0f)
          alpha:1.0f];
}
@end