Compiler bug ?

[Ulf Zibis]

Hey, much thanks.

-Ulf


Am 26.01.2010 17:45, schrieb Neal Gafter:
> Ulf-
>
> Make those variables final and they will be constants.  There are
> special rules for allowing the conversion of sufficiently small
> constants into the type char.
>
> Cheers,
> Neal
>
> On Tue, Jan 26, 2010 at 8:30 AM, Ulf Zibis<Ulf.Zibis at gmx.de>  wrote:
>    
>> Hi,
>>
>> i have:
>>
>> public class EUC_TW_C_d_b_fastLoop1 extends FastCharset implements
>> HistoricallyNamedCharset {
>>
>>     private static final byte MIN_BYTE_VALUE = EUC_TWMapping2.MIN_BYTE_VALUE;
>>     private static final byte MAX_BYTE_VALUE = EUC_TWMapping2.MAX_BYTE_VALUE;
>>
>>     private static final class Encoder extends FastCharset.Encoder {
>>         static {
>>                 for (char off=0, b1=(MIN_BYTE_VALUE&0xff);
>> b1<=(MAX_BYTE_VALUE&0xff); b1++)
>>             ...
>>         }
>>         ...
>>     }
>>     ...
>> }
>>
>> This compiles fine, but equivalent code in own class compiles with errors:
>>
>> final class Enc_d_n_fastLoop1 extends FastCharset.Encoder {
>>
>>     static {
>>         byte MIN_BYTE_VALUE = EUC_TWMapping2.MIN_BYTE_VALUE;
>>         byte MAX_BYTE_VALUE = EUC_TWMapping2.MAX_BYTE_VALUE;
>>
>>             for (char off=0, b1=(MIN_BYTE_VALUE&0xff);
>> b1<=(MAX_BYTE_VALUE&0xff); b1++)
>>         ...
>>     }
>>     ...
>> }
>>
>> C:\Projects\nio_charset_j7_EUC_TW\src\sun\nio\cs\ext\Enc_d_n_fastLoop1.java:75:
>> possible loss of precision
>>             for (char off=0, b1=(MIN_BYTE_VALUE&0xff);
>> b1<=(MAX_BYTE_VALUE&0xff); b1++)
>>   required: char
>>   found:    int
>>
>> Is that correct ?
>>
>> For complete sources see:
>> https://java-nio-charset-enhanced.dev.java.net/source/browse/java-nio-charset-enhanced/branches/j7_EUC_TW/src/sun/nio/cs/ext/?rev=915
>>
>> Regards,
>>
>> -Ulf
>>
>>
>>
>>
>>      
>
>