Comments by CPallini - CodeProject

CPallini 2 days ago View

You know that's just a huge dump of code. Hardly someone would look at the it.
You should better explain what is your scenario and what is your problem.

CPallini 22-May-24 13:21pm View

Thank you very much.

CPallini 16-May-24 9:24am View

Is 'Line 2' actually a line?
Could you please provide an example?

CPallini 10-May-24 6:42am View

Very well deserved, indeed.

CPallini 10-May-24 6:10am View

5.

CPallini 10-May-24 5:48am View

Mine is just a guess. However you could easily verify it (e.g. trying to copy to a different destination file)

CPallini 10-May-24 5:25am View

I am suggesting that CopyFile fails because it cannot overwrite the destination file. It should have no problems with the source (A) file.

CPallini 10-May-24 5:03am View

I guess it is the CopyFile destination file (not its source) the culprit (e.g. it is open in your application).
You could easily verify the above assumption.

CPallini 10-May-24 2:34am View

The debugger should help. You have to look at the actual content of the string.

CPallini 7-May-24 5:49am View

My bad. Thanks.

CPallini 6-May-24 2:30am View

I would use an ordinary map in your scenario.

CPallini 2-May-24 11:14am View

5.

CPallini 24-Apr-24 3:22am View

You are too good a man.
Thanks!

CPallini 24-Apr-24 2:03am View

5.

CPallini 24-Apr-24 2:03am View

5.

CPallini 23-Apr-24 13:50pm View

Thank you, man!

CPallini 19-Apr-24 10:36am View

Indeed.

CPallini 8-Apr-24 2:02am View

5.

CPallini 29-Mar-24 7:16am View

You stated: "Ensure variables playerRow, playerCol, win, and collision are initialized correctly"
However I see no initialization taking place in initalizeGame. Did you update the posted code?

CPallini 28-Mar-24 7:15am View

Could you also provide a working configuration file, in order to enable us to run and test it?

CPallini 27-Mar-24 5:40am View

5.

CPallini 24-Mar-24 14:24pm View

5.

CPallini 24-Mar-24 14:24pm View

5.

CPallini 19-Mar-24 7:04am View

Fixed now, thank you Richard.
I got the warnings from the compilers and ignored them resolutely. :-D

CPallini 15-Mar-24 6:36am View

Best solution it is the Gauss one:

print(100*101/2);

CPallini 12-Mar-24 7:08am View

5.

CPallini 7-Mar-24 6:45am View

5. Good catch!

CPallini 5-Mar-24 5:56am View

5.

CPallini 4-Mar-24 7:16am View

5.

CPallini 4-Mar-24 2:30am View

5.

CPallini 4-Mar-24 2:30am View

5.

CPallini 27-Feb-24 4:14am View

You can control the lifetime of a COM object only via the Release method, hence you must have a pointer to its IUnknown interface, in order to control it.
On the other hand, a library could possibly create a COM object internally, for internal usage. Such an object is not exposed and you cannot control it (a buggy library could, for instance, 'forget' to release an internal COM object).

CPallini 27-Feb-24 2:12am View

Thank you!

CPallini 24-Feb-24 4:49am View

I think that's wrong, Pete.
wstring::c_str() returns a (const wchar_t *).
Moreover, it returns a pointer to local data.

CPallini 24-Feb-24 4:29am View

Indeed. 5.

CPallini 24-Feb-24 4:27am View

Nice.
5.

CPallini 24-Feb-24 4:27am View

5.

CPallini 21-Feb-24 7:47am View

Thank you.

CPallini 21-Feb-24 7:47am View

Well, I actually tried to compile it...
:-D
Thank you.

CPallini 21-Feb-24 7:45am View

Indeed.
5.

CPallini 21-Feb-24 2:45am View

You are welcome.

CPallini 20-Feb-24 4:46am View

5.

CPallini 20-Feb-24 2:05am View

5.

CPallini 11-Feb-24 6:31am View

Wow.

CPallini 11-Feb-24 4:28am View

Indeed. 5.

CPallini 11-Feb-24 4:28am View

5.

CPallini 9-Feb-24 8:36am View

5.

CPallini 6-Feb-24 2:32am View

I bet it does.

CPallini 5-Feb-24 2:14am View

You provided the code but failed to provide the 'problem description' as well as 'input' and 'expected output'.

CPallini 5-Feb-24 2:10am View

5.

CPallini 5-Feb-24 2:10am View

5.

CPallini 30-Jan-24 5:39am View

The info you provided is not complete. The stop condition formula ('here n is the first integer...') is not visible. The mySyn function is not defined. You didn't show the implementation of giaithua and so on.

CPallini 29-Jan-24 9:34am View

It's been a long time since I... (I have to admit I'm using C# and Windows Forms)
Anyway you might start either a 'MFC App' project or a 'Windows Desktop Application' one.
See, for instance
https://learn.microsoft.com/en-us/cpp/overview/visual-cpp-samples?view=msvc-170&source=recommendations#mfc-samples

https://learn.microsoft.com/en-us/cpp/windows/walkthrough-creating-windows-desktop-applications-cpp?view=msvc-170

CPallini 29-Jan-24 8:49am View

You are welcome.

CPallini 29-Jan-24 6:52am View

Well, if you are searching for something minimalist then you may have a look at GDI+ documentation:
https://learn.microsoft.com/en-us/windows/win32/gdiplus/-gdiplus-getting-started-use
There is shown how to use the graphics primitives. Then it is just a matter of scaling and translating points.

CPallini 26-Jan-24 6:36am View

5.

CPallini 23-Jan-24 2:29am View

5.

CPallini 23-Jan-24 2:29am View

5.

CPallini 22-Jan-24 2:53am View

And what's wrong with your code?

CPallini 19-Jan-24 6:21am View

Could you please provide the declaration of the data? I mean: What is the type of y_giro ?

CPallini 19-Jan-24 6:19am View

Deleted

You are right: It is not well explained :-D
Could you please detail your scenario.

CPallini 19-Jan-24 6:19am View

You are right: It is not well explained :-D
Could you please detail your scenario?

CPallini 18-Jan-24 3:05am View

5.

CPallini 17-Jan-24 9:51am View

You could also try realterm, if you need to send binary data (the manual is not clear about what you should send in order to obtain the listed answers).

CPallini 17-Jan-24 9:03am View

I suggest you to first use a reliable terminal emulator program (e.g. PuTTY) to attempt the communication with the scale.
Then you can write your application.

CPallini 17-Jan-24 2:13am View

5.

CPallini 15-Jan-24 2:12am View

5.

CPallini 13-Jan-24 9:19am View

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CPallini 12-Jan-24 13:42pm View

5.

CPallini 10-Jan-24 2:12am View

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CPallini 9-Jan-24 2:15am View

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CPallini 9-Jan-24 2:15am View

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CPallini 21-Dec-23 7:57am View

Thank you.

CPallini 19-Dec-23 8:06am View

And you are right. Pointer arithmetic depends only on the type of the pointer itself.

CPallini 19-Dec-23 7:34am View

Well, writing

int * x = (char *)y;

is senseless.

CPallini 19-Dec-23 2:15am View

Is the 'other board' identical to the problematic one?

CPallini 19-Dec-23 2:02am View

5.

CPallini 18-Dec-23 10:55am View

In fact it does NOT change. For instance
int * x = (int *)y;
just means: "assign (the address of the value pointed by) y to x. The cast just make the compiler stop complaining about x and y being different pointer types.

CPallini 18-Dec-23 8:41am View

You are not alone.

CPallini 18-Dec-23 8:06am View

5.

CPallini 13-Dec-23 4:38am View

What is a WChar? Never heard of it. Could you please post its declaration?

CPallini 12-Dec-23 2:07am View

5.

CPallini 11-Dec-23 5:41am View

5.

CPallini 11-Dec-23 2:21am View

And, above all: what has to do with C++?

CPallini 7-Dec-23 13:03pm View

Thanks!

CPallini 7-Dec-23 2:12am View

5.

CPallini 5-Dec-23 9:13am View

While you cannot, depending on your actual scenario there could be a workaround (for instance you can pass to the static method, the instance of the class).

CPallini 2-Dec-23 1:44am View

Thank you!

CPallini 1-Dec-23 13:59pm View

My 5.

CPallini 1-Dec-23 13:58pm View

Thank you.

CPallini 30-Nov-23 9:51am View

And... Where is the C# System::String?

CPallini 29-Nov-23 13:31pm View

Thank you.

CPallini 28-Nov-23 2:06am View

5.

CPallini 23-Nov-23 16:21pm View

Wow. Indeed.

CPallini 23-Nov-23 16:20pm View

While you're right, let us (OP included) have a glimpse of elegant C++

CPallini 23-Nov-23 16:17pm View

Deleted

Wow.
Indeed.

CPallini 21-Nov-23 7:17am View

5.

CPallini 17-Nov-23 7:21am View

So, I cannot test your code.

CPallini 17-Nov-23 7:09am View

The code you provided doesn't even compile. The first error is
bemenet.h: No such file or directory

CPallini 16-Nov-23 2:22am View

5.

CPallini 15-Nov-23 8:47am View

5.

CPallini 15-Nov-23 2:02am View

Thank you!

CPallini 13-Nov-23 2:06am View

5.

CPallini 13-Nov-23 2:05am View

5.

CPallini 13-Nov-23 2:05am View

5.

CPallini 9-Nov-23 9:49am View

Well, I guessed something like that.
As for me, I did use it for C++ objects whose memory was managed by the Lua runtime.

CPallini 9-Nov-23 9:45am View

You're welcome.
I discovered that while trying to answer your question (before, I just assumed you have to provide your own implementation).

CPallini 9-Nov-23 5:52am View

5.

CPallini 9-Nov-23 5:29am View

Thank you.
Exceptions are, sometimes, desirable. See, for instance, the STL at method.

CPallini 9-Nov-23 5:22am View

It is a weird thing used by us weird people.

CPallini 9-Nov-23 5:21am View

Thank you.

CPallini 9-Nov-23 4:37am View

That's ONE of the PROBLEMS with C++ (FFY).
:-D :-D :-D

CPallini 9-Nov-23 4:35am View

In your case

auto pTD = dynamic_cast<CToolDerived* >(pT);

assuming pT is a pointer to a CToolDerived object, passed as a pointer to CTool.

CPallini 9-Nov-23 3:45am View

Thank you.
I posted it because the C-style cast, which always succeeds, doesn't look very appropriate there.

CPallini 7-Nov-23 5:44am View

5.

CPallini 7-Nov-23 5:44am View

5.

CPallini 7-Nov-23 5:15am View

You are welcome.

CPallini 7-Nov-23 1:58am View

5.

CPallini 3-Nov-23 11:32am View

5.

CPallini 3-Nov-23 9:34am View

A genuine experimental approach.
I was completely out of the way.

CPallini 3-Nov-23 8:58am View

:thumbsup:
Good catch!

CPallini 31-Oct-23 2:54am View

You are welcome.

CPallini 30-Oct-23 15:44pm View

5.

CPallini 30-Oct-23 15:43pm View

5.

CPallini 30-Oct-23 3:05am View

Deleted

5.

CPallini 30-Oct-23 3:05am View

5.

CPallini 27-Oct-23 14:30pm View

Thank you.

CPallini 27-Oct-23 12:38pm View

Thank you!

CPallini 27-Oct-23 4:47am View

Have a look at:
https://www.javatpoint.com/for-loop-in-c

CPallini 27-Oct-23 4:45am View

5.

CPallini 26-Oct-23 8:31am View

You are welcome.

CPallini 25-Oct-23 16:32pm View

Thank you.

CPallini 25-Oct-23 1:59am View

My 5.

CPallini 24-Oct-23 7:45am View

5.

CPallini 17-Oct-23 8:04am View

5.

CPallini 16-Oct-23 2:09am View

5.

CPallini 12-Oct-23 8:43am View

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CPallini 11-Oct-23 2:04am View

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CPallini 11-Oct-23 2:03am View

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CPallini 10-Oct-23 9:08am View

Indeed. My 5.

CPallini 27-Sep-23 2:23am View

OOOPS, I overlooked that.
Thanks.

CPallini 25-Sep-23 2:02am View

5.

CPallini 21-Sep-23 2:24am View

5.

CPallini 21-Sep-23 2:24am View

5.

CPallini 18-Sep-23 3:13am View

5.

CPallini 18-Sep-23 2:03am View

My 5.

CPallini 14-Sep-23 5:45am View

5.

CPallini 12-Sep-23 5:41am View

Thank you.

CPallini 12-Sep-23 3:36am View

5.

CPallini 11-Sep-23 3:06am View

5.

CPallini 11-Sep-23 3:04am View

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CPallini 11-Sep-23 3:04am View

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CPallini 11-Sep-23 3:04am View

5.

CPallini 28-Aug-23 7:34am View

As Richard suggests, probably you are just not-properly-detecting the serial port output.

CPallini 28-Aug-23 7:32am View

You should report here the input values (an possibly the expected output) to get a meaningful help.

CPallini 25-Aug-23 7:25am View

5.

CPallini 25-Aug-23 5:27am View

Did you sort it out (just curious)?

CPallini 25-Aug-23 2:23am View

You are welcome.

CPallini 24-Aug-23 3:06am View

5.

CPallini 22-Aug-23 6:01am View

5.

CPallini 21-Aug-23 15:40pm View

Then I would try (if you cannot debug by other means) to render a glyph with a very well known pattern (in order to know exactly where memory is going to).

CPallini 21-Aug-23 8:51am View

Then I am not able to see any bug in your code. Possibly we need to compare it with the seek_data one (possibly I am doing bad assumptions. That is I assume a flat buffer containing the whole imagine, pointers declared as uint8_t *, etc...).

CPallini 21-Aug-23 8:40am View

This is not the function you are calling in the linked page. The signature is different.
Probably you are using a wrapper, there.

CPallini 21-Aug-23 5:23am View

I do believe your analysis is correct (my 5). Anyway, I would investigate the misbehavior of read_data instead to fix it the way you suggested.

CPallini 21-Aug-23 2:53am View

It looks read_data is not doing what you expect it should. Maybe it is doing more than you expect :-)

CPallini 4-Aug-23 10:17am View

You are welcome.

CPallini 4-Aug-23 9:23am View

Such a code has no effect. It could have been optimized out.

CPallini 4-Aug-23 8:22am View

That code was actually skipped.

CPallini 4-Aug-23 8:22am View

Also note that:

	int n = 0;          
	n = CmnStruct::Return();

has no effect and could have been optimized out.

CPallini 4-Aug-23 7:55am View

Nope, it is not an attempt to call a static method.
It is a call to its own instance method (after all 'CBYetiBase' is a 'CmnStruct').
Try

#include <iostream>
  
using namespace std;

class Base
{
protected:
int the_answer(){ return 42;}

public:
  Base(){}
};

class Derived: public Base
{
public:
  Derived(){ cout << "The answer is " << Base::the_answer() << "\n";};
};


int main()
{
  Derived d;
}

CPallini 4-Aug-23 5:30am View

How do you check that?

CPallini 4-Aug-23 5:17am View

Thank you.

CPallini 4-Aug-23 2:37am View

5.

CPallini 3-Aug-23 2:39am View

5.

CPallini 31-Jul-23 4:24am View

Well, you know, we do not encourage hacking.

CPallini 30-Jul-23 14:52pm View

You are welcome!
-- Sir Carlo

CPallini 29-Jul-23 11:33am View

Anyway, you did. :-D

CPallini 29-Jul-23 10:22am View

5.

CPallini 29-Jul-23 10:21am View

My 5. ;-)

CPallini 28-Jul-23 10:18am View

Thank you.

CPallini 27-Jul-23 5:50am View

You are welcome.

CPallini 27-Jul-23 2:06am View

5.
BTW: it is COM 'interop' (not 'interrupt').

CPallini 26-Jul-23 7:00am View

Could you please give us the details of such an 'assertion error'?

CPallini 26-Jul-23 6:49am View

Thank you.

CPallini 25-Jul-23 3:45am View

OOOOOOOOOOOOOOOOOPS!

CPallini 24-Jul-23 2:52am View

5.

CPallini 24-Jul-23 2:04am View

5.

CPallini 22-Jul-23 6:51am View

5.

CPallini 21-Jul-23 7:07am View

No type casting, no error :-D

CPallini 20-Jul-23 3:55am View

Actually you usually cannot perform all the multiplications before applying the modulo (because factorial becomes soon very large). Applying the modulo at each iteration produces the correct result.
Note, your code is returning the quotient, not the reminder.

CPallini 19-Jul-23 2:57am View

5.

CPallini 19-Jul-23 2:38am View

Fortunately the two pieces of code produce the same result, so you may use the first one in order to avoid dealing with huge numbers (a!).

CPallini 19-Jul-23 0:34am View

Thank you.

CPallini 7-Jul-23 7:03am View

Thank you!

CPallini 7-Jul-23 6:02am View

5.

CPallini 7-Jul-23 6:01am View

5.

CPallini 4-Jul-23 6:58am View

Yes, it is.

CPallini 28-Jun-23 7:16am View

5.

CPallini 28-Jun-23 1:51am View

5.

CPallini 28-Jun-23 1:51am View

5.

Comments by CPallini (Top 200 by date)