Cocoaの日々情報局

軽く衝撃を受けてます。自前で変換コードを書いていたような気が..

Convert Hex Value Stored As NSString To Integer

- (unsigned int)intFromHexString:(NSString *) hexStr
{
  unsigned int hexInt = 0;
 
  // Create scanner
  NSScanner *scanner = [NSScanner scannerWithString:hexStr];
 
  // Tell scanner to skip the # character
  [scanner setCharactersToBeSkipped:[NSCharacterSet characterSetWithCharactersInString:@"#"]];
 
  // Scan hex value
  [scanner scanHexInt:&hexInt];
 
  return hexInt;
}

16 進数の文字列 (NSString) を数値型 (int) に変換する - ShobonEngineの日記