How do you convert an iPhone OSStatus code to something useful?

Question

I am getting more than a little sick of this iPhone SDK and its documentation...

I am calling AudioConverterNew

in the documentation under Returns: it says \

Answer 1

Here is the code I wrote, hope it save you some typing... er, don't know how to make it show up correctly.

- (NSString *)OSStatusToStr:(OSStatus)st
{
    switch (st) {
        case kAudioFileUnspecifiedError:
            return @"kAudioFileUnspecifiedError";

        case kAudioFileUnsupportedFileTypeError:
            return @"kAudioFileUnsupportedFileTypeError";

        case kAudioFileUnsupportedDataFormatError:
            return @"kAudioFileUnsupportedDataFormatError";

        case kAudioFileUnsupportedPropertyError:
            return @"kAudioFileUnsupportedPropertyError";

        case kAudioFileBadPropertySizeError:
            return @"kAudioFileBadPropertySizeError";

        case kAudioFilePermissionsError:
            return @"kAudioFilePermissionsError";

        case kAudioFileNotOptimizedError:
            return @"kAudioFileNotOptimizedError";

        case kAudioFileInvalidChunkError:
            return @"kAudioFileInvalidChunkError";

        case kAudioFileDoesNotAllow64BitDataSizeError:
            return @"kAudioFileDoesNotAllow64BitDataSizeError";

        case kAudioFileInvalidPacketOffsetError:
            return @"kAudioFileInvalidPacketOffsetError";

        case kAudioFileInvalidFileError:
            return @"kAudioFileInvalidFileError";

        case kAudioFileOperationNotSupportedError:
            return @"kAudioFileOperationNotSupportedError";

        case kAudioFileNotOpenError:
            return @"kAudioFileNotOpenError";

        case kAudioFileEndOfFileError:
            return @"kAudioFileEndOfFileError";

        case kAudioFilePositionError:
            return @"kAudioFilePositionError";

        case kAudioFileFileNotFoundError:
            return @"kAudioFileFileNotFoundError";

        default:
            return @"unknown error";
    }
}