Twisted Logic 20070915 is available!

[gerold]

Hi Graham,

I have not played enough games to conclude that it doesn't lose on time anymore, but based on the games that this version and the versions prior to this played in the last couple of weeks, I have not noticed it crashing.

I hope what Norm observes is true so that I could already watch how my new engine would fare in the CCRL.

Regards,
Edsel Apostol

Thanks for the new verison. Running it in Arena. Playing
eng.vs.eng. White moves ok but black seems to stick and
not move on its own.

Gerold.

[nczempin]

To all amateur programmers out there, check your code for signed and unsigned integer conversions as it may cause a subtle bug in the program.

Question from a Java programmer: signed? Whazzat?



Incidentally, the above hopefully not only applies to amateurs, but to professional programmers, too (and, yes, they do make those mistakes too).

[Alessandro Scotti]

To all amateur programmers out there, check your code for signed and unsigned integer conversions as it may cause a subtle bug in the program.

Question from a Java programmer: signed? Whazzat?



Incidentally, the above hopefully not only applies to amateurs, but to professional programmers, too (and, yes, they do make those mistakes too).

I can't tell how many times I have seen signed/unsigned mistakes with the "byte" Java type...

[nczempin]

To all amateur programmers out there, check your code for signed and unsigned integer conversions as it may cause a subtle bug in the program.

Question from a Java programmer: signed? Whazzat?



Incidentally, the above hopefully not only applies to amateurs, but to professional programmers, too (and, yes, they do make those mistakes too).

I can't tell how many times I have seen signed/unsigned mistakes with the "byte" Java type...

Which is always signed, just as all other primitive Java data types. Those mistakes can only come from C programmers

[nczempin]

To all amateur programmers out there, check your code for signed and unsigned integer conversions as it may cause a subtle bug in the program.

Question from a Java programmer: signed? Whazzat?



Incidentally, the above hopefully not only applies to amateurs, but to professional programmers, too (and, yes, they do make those mistakes too).

The joke is on me: Of course I meant to say "unsigned? Whazzat?"

[Alessandro Scotti]

Which is always signed, just as all other primitive Java data types. Those mistakes can only come from C programmers

Not only them... last I saw came from a "Java programmer" that was implementing some spec... spec said "byte" and proceeded to specify some magic values >= 80h, programmer implemented spec as literally specified, program did not work... Too easy to forget byte is signed, when in most places (not only programming languages) it is assumed it isn't!

[Allard Siemelink]

Which is always signed, just as all other primitive Java data types. Those mistakes can only come from C programmers

Not quite...as the char type is unsigned in Java...

[Graham Banks]

Running it in Arena. Playing
eng.vs.eng. White moves ok but black seems to stick and
not move on its own.

Gerold.

Hi Gerold,

no problems here under Arena 1.1

Regards, Graham.

[nczempin]

Which is always signed, just as all other primitive Java data types. Those mistakes can only come from C programmers

Not only them... last I saw came from a "Java programmer" that was implementing some spec... spec said "byte" and proceeded to specify some magic values >= 80h, programmer implemented spec as literally specified, program did not work... Too easy to forget byte is signed, when in most places (not only programming languages) it is assumed it isn't!

Ah, but surely it wasn't a "pure Java programmer". He must have been contaminated with a real language

[nczempin]

Which is always signed, just as all other primitive Java data types. Those mistakes can only come from C programmers

Not quite...as the char type is unsigned in Java...

I was waiting for this

Yes, the boolean is also unsigned...