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David O'Neil2-Jul-20 10:10

2-Jul-20 10:10

If C#'s IL doesn't treat 'if (a==0)...' the same as 'if (a)...', I'd be very surprised. But then again, I'm not a C# expert.

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honey the codewitch2-Jul-20 12:25

2-Jul-20 12:25

I'm not sure what you mean in this context. I think we're talking about two different things.

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David O'Neil2-Jul-20 13:03

2-Jul-20 13:03

I doubt the front-end compiler creates different IL code for "if (intVarImpicitlyCastToBool) { }" and "if (intVar != 0) { }". So your hesitancy is baseless. But I could be wrong, because I don't know if C# is that stupid.

The forgotten roots of science | C++ Programming | DWinLib

honey the codewitch2-Jul-20 13:18

2-Jul-20 13:18

Oh I see what you mean. My experience with C# is that the compiler does very little optimization, even in release builds. Either way, the cast isn't necessary, and IMO doesn't add more clarity than a const would. And frankly, I don't think the zero is bad either, but maybe that's just from decades of treating 0 and false as functionally equivalent as it is in the C world.

Real programmers use butterflies

honey the codewitch2-Jul-20 9:10

2-Jul-20 9:10

Oh, I think maybe i misunderstood what you were asking. Somewhere in the code it sees if _timingTimestamp is zero. If it is, it knows that's the first message. It will clear _timingTimestamp if the messages wind up dropping off or otherwise getting too far apart (timeout)

Real programmers use butterflies

David O'Neil2-Jul-20 9:15

2-Jul-20 9:15

If you are using the same timing message for the regular 24/beat as the console window sends, you will never be able to tell which is which. And you can't make the appropriate adjustment.

The forgotten roots of science | C++ Programming | DWinLib

honey the codewitch2-Jul-20 9:33

2-Jul-20 9:33

Umm. I don't need to differentiate which is which, I only need to know how far apart they occur.

A MIDI time clock signal is sent 24 times per quarter note.

That's all my tap tempo transmitter does.

The recorder sees these MIDI time clock signals.

Its job is simply to use them to determine the tempo solely based on how far apart they occur, and adjust its tempo accordingly when it sees them.

I don't need to distinguish between different clock signals (like beginning and end). there is no such concept in the MIDI wire protocol anyway.

Real programmers use butterflies

David O'Neil2-Jul-20 10:12

2-Jul-20 10:12

I was under the impression that you internally used _timeStamp...'s in the internal processing of the main program. In other words, they were already embedded in the stream for timing purposes. Good luck getting to the bottom of everything!

The forgotten roots of science | C++ Programming | DWinLib

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Greg Utas2-Jul-20 0:25

Greg Utas

2-Jul-20 0:25

Windows performs context switches at a pace that I would call manic, so I don't think it would account for the 20 msecs unless there is semaphore contention or something else going on.

honey the codewitch2-Jul-20 9:11

2-Jul-20 9:11

I'm also not using any locks explicitly inside that codepath except when the tempo changes, which doesn't happen *between* messages

Real programmers use butterflies

I was sent this, and...

OriginalGriff1-Jul-20 8:21

OriginalGriff

1-Jul-20 8:21

If you visit QA much, you'll recognise this ... Modern Art[^] Laugh | :laugh:

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Mike Hankey1-Jul-20 8:23

Mike Hankey

1-Jul-20 8:23

Bought right!

I'm not sure how many cookies it makes to be happy, but so far it's not 27.

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Kris Lantz1-Jul-20 8:29

Kris Lantz

1-Jul-20 8:29

He also needs the answer ASAP.

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Greg Utas1-Jul-20 8:45

Greg Utas

1-Jul-20 8:45

Too good!

RedDk1-Jul-20 9:36

RedDk

1-Jul-20 9:36

... (thru' with the two step)

Thought of the Day

OriginalGriff1-Jul-20 4:37

OriginalGriff

1-Jul-20 4:37

Does a clock radio go off with alarming frequency?

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W∴ Balboos, GHB1-Jul-20 5:13

W∴ Balboos, GHB

1-Jul-20 5:13

Not something I toc about very often, but if so, it snooze to me.

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jeron11-Jul-20 5:13

jeron1

1-Jul-20 5:13

That one just Hertz, period.

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Slacker0071-Jul-20 5:13

Slacker007

1-Jul-20 5:13

OriginalGriff wrote:
Does a clock radio go off with alarming frequency?

every time.

DerekT-P1-Jul-20 6:01

DerekT-P

1-Jul-20 6:01

Only if you leave it out of the fridge... ?

Gary R. Wheeler1-Jul-20 7:54

Gary R. Wheeler

1-Jul-20 7:54

Since most clock radios use a really annoying high-pitched beeper for the alarm sound, yes they do.

Those among you notice the 'meta' nature of this reply should discuss amongst yourselves while everyone else catches up.

Software Zen: delete this;

DRHuff1-Jul-20 9:18

DRHuff

1-Jul-20 9:18

If a clock radio goes off - why is it that the first thing everyone does is turn it off?

Wait - is this back to the no-no thing?!

If you can't laugh at yourself - ask me and I will do it for you.