Parasolid - C / C++ / MFC Discussion Boards

Ganesh_Srim11-Apr-05 8:32

11-Apr-05 8:32

Hello, THanks for the reply. I figured this out only now.
I did try what you suggested before.
But MS VC++ does not accpept such a construct like GNU CC does.

But this problem can be solved by subclassing a simple Point class:

class Coords2D {
public:
int x,y;
Coords2D() : x(0), y(0) {}
Coords2D(int a, int b) : x(a), y(b) {}
Coords2D(const Coords2D& c) : x(c.x), y(c.y) {}
Coords2D& operator=(const Coords2D& c) { x = c.x; y = c.y; }
};

// An instance hold reference to operands of binary +
class PointsToBeAdded {
public:
const Coords2D& p1;
const Coords2D& p2;
PointsToBeAdded(const Coords2D& pp1, const Coords2D& pp2) : p1(pp1), p2(pp2) {}
//operator Point();
};

class Point : public Coords2D
{
...
};
...
and so on....

Here is the error message

TernaryOpTester.cpp
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(79) : error C2027: use of undefined type 'PointsToBeAdded'
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(58) : see declaration of 'PointsToBeAdded'
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(79) : error C2228: left of '.p1' must have class/struct/union type
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(79) : error C2027: use of undefined type 'PointsToBeAdded'
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(58) : see declaration of 'PointsToBeAdded'
H:\C++\Projects\Test\tmp\TernaryOpTester.cpp(79) : error C2228: left of '.p2' must have class/struct/union type
Tool returned code: 2

Ganesh

A regular expression needed

John R. Shaw10-Apr-05 9:47

John R. Shaw

10-Apr-05 9:47

I am trying to create an RE that recognizes C-comment syntax.

Example: "/\*[^*]*\*/" recognizes any C-comment that does not have the character '*' within the comment text.

Problem: The character '*' needs to be recognized within the comment.

Esentialy I need an RE that acts like this:

// Note: This code is example only!
bool IsComment(char* pStr)
{
    if( !pStr || !*pStr || strncmp(pStr,"\\*",2) )
        return false;
    // OK: string starts with "\*"
    pString += 2;
    // WHILE: string is valid && does not equal "*/"
    while( *pStr && strncmp(pStr,"*//",2) )
        ++pStr;
    // RETURN: true is string equals "*/" at this point
    return !strncmp(pStr,"*//",2) ? true : false;
}

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Re: A regular expression needed

Michael Dunn10-Apr-05 10:25

Michael Dunn

10-Apr-05 10:25

Do you even need anything special in the middle of the regex? I'd think that the endpoint strings of /* and */ would be enough. Something like:
/\*.*?\*/
using a non-greedy match on .* to get only one comment. Using the default greedy match would treat /*foo*/ bar /*baz*/ as one big comment.

--Mike--
Visual C++ MVP Cool | :cool:

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Strange things are afoot at the U+004B U+20DD

Re: A regular expression needed

John R. Shaw10-Apr-05 11:06

John R. Shaw

10-Apr-05 11:06

Well, I am not using Regex++ or any thing like that. The one I am using (mine), only supports basic REs with character classes like \w and [:word:], thrown in for good measure. So it does not recognizes that expression. I've seen that expression in Regex++, but don't understand how it works.

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Re: A regular expression needed

Michael Dunn10-Apr-05 12:05

Michael Dunn

10-Apr-05 12:05

I'm most familiar with the Perl regex syntax, so that's what I was using. The ? after a wildcard match means "match as few characters as possible without making the entire match fail". The difference is apparent with that sample from my earlier post:
/*foo*/ bar /*baz*/
/\*.*\*/ matches /* then foo*/ bar /*baz then */ (note the .* slurps up as much as possible, this is the default "greedy" behavior)
/\*.*?\*/ matches /* then foo then */ (the .*? only slurps up "foo" because it can stop there and still have the entire match succeed)

If you know what your input will be, and know that there will never be two comments on the same line, you should be able to go with /\*.*\*/

--Mike--
Visual C++ MVP Cool | :cool:

LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ
Strange things are afoot at the U+004B U+20DD

Re: A regular expression needed

John R. Shaw10-Apr-05 13:03

John R. Shaw

10-Apr-05 13:03

Thanks for the explanation.

I went to write simple color coded text editor a few years ago and ended up with a code editor for C/C++ and Pascal, that acts a lot like the VC++ editor. I am trying to make the backend user programmable via regular expressions, so the user can set it up for any language.

At the moment a programer can program it, within limits, using a built-in text state class. But this method is flawed and not user friendly enough for me.

Note: I have no way to know what the input will be.

Thanks again!

INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen

Dundas UltimateTCP40 - question

#realJSOP10-Apr-05 5:22

#realJSOP

10-Apr-05 5:22

When I transfer a file, I immediately follow the transfer with a "MTDM" (change file time) command so the file reflects the time it was actually last modified on my machine.

The server always reports that the file wasn't found, even though I got a 226 (Transfer OK) response after the transfer completed. Do I have to flush a cache or some such thing?

------- sig starts

"I've heard some drivers saying, 'We're going too fast here...'. If you're not here to race, go the hell home - don't come here and grumble about going too fast. Why don't you tie a kerosene rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt

"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Parasolid

4apai10-Apr-05 4:05

4apai

10-Apr-05 4:05

hi does anyone has an expirience in programming using parasolid kernel?
i need a light samples on subject, programming reference etc.
google is really poor on this....

all help will be highly appreciated.

4apai
There're no impossible tasks. There're tasks that required infinite period of execution time.

MessageBox in other languages

a_kiani10-Apr-05 3:45

a_kiani

10-Apr-05 3:45

Hi to all,
I want to change the predefined text language in Message Boxes an Property Sheets.
I dont know how to do.
I would be pleased if anyone helps me.
Thanks
Ali

Re: MessageBox in other languages

ThatsAlok10-Apr-05 18:29

ThatsAlok

10-Apr-05 18:29

Look at this MessageBox API [MessageBoxIndirect]

[Vote One Here, Complete my Survey....]

Alok Gupta
visit me at http://www.thisisalok.tk

"I ~~Think~~ Believe this Will Help"

How to get function name by its address

Dudi Avramov10-Apr-05 1:32

Dudi Avramov

10-Apr-05 1:32

Suppose i use __penter compiler feature in my project in order to have function hooking.
I'd like to get the function/method name by the ebp registry value.
I know that i need to use SymGetSymFromAddr. However, i'm not familiar with this very much.

Can anyone help me get the function/method name by the ebp registry value?

Thanks,
Dudi

Re: How to get function name by its address

Joel Holdsworth10-Apr-05 5:31

Joel Holdsworth

10-Apr-05 5:31

Well... here's the documentation for SymFromAddr: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/debug/base/symfromaddr.asp[^]

Joel Holdsworth

Wanna give me a job this summer?
Check out my online CV and project history[^]

compling .exe

monageasmear10-Apr-05 0:48

monageasmear

10-Apr-05 0:48

i have a visual studio project in c++ that makes a .exe i want to run it from the command line, i think i need to complile it from here as well, how do i do that,what is the command?

Re: compling .exe

Gary R. Wheeler10-Apr-05 2:42

Gary R. Wheeler

10-Apr-05 2:42

An .EXE file is an EXEcutable. Just run it; you don't need to compile it again.

Software Zen: delete this;

Re: compling .exe

4apai10-Apr-05 3:52

4apai

10-Apr-05 3:52

try following:

cd "..\MyProject"

"C:\Program Files\Microsoft Visual Studio .NET 2003\Common7\IDE\devenv" /nologo myproject.sln /rebuild "Release"

4apai
There're no impossible tasks. There're tasks that required infinite period of execution time.

Variable Argument (Ellipsis (...)) in MFC Win32 DLL

asdf175310-Apr-05 0:09

asdf1753

10-Apr-05 0:09

Hi,
I have problem in using variable argument (...) in win32 DLL.
If you have a solution or any other suggestion or tutorial, please help me Frown | :-(

.
When I wanna to call the function that gets variable arguments in compiling the test application it has a linking error.
Regards.
Cry | :((

Re: Variable Argument (Ellipsis (...)) in MFC Win32 DLL

4apai10-Apr-05 3:54

4apai

10-Apr-05 3:54

the information u provide get me nothing to help with solving

some code?

4apai
There're no impossible tasks. There're tasks that required infinite period of execution time.

Re: Variable Argument (Ellipsis (...)) in MFC Win32 DLL

asdf1753110-Apr-05 4:52

asdf17531

10-Apr-05 4:52

hi,
My problem was solved!
thank you Smile | :)

how can i know other programs change the table in access?

liuyue9-Apr-05 21:46

liuyue

9-Apr-05 21:46

i use vc6.0 to access data table in Access of MS, but the data table that i will access is built by the other program. i want to get the new data that program put into the table. because the program often put data into the table, i want to know when it change the table, and i want to get the new data that is put into table after the table is changed. Can Access of MS inform me?

Re: how can i know other programs change the table in access?

4apai10-Apr-05 3:56

4apai

10-Apr-05 3:56

in ms sql server the solution is to implement triggers to the tables changes u want to be notified. i dont know about access. does it support this...

4apai
There're no impossible tasks. There're tasks that required infinite period of execution time.

dialog box problem

quistiun9-Apr-05 20:27

quistiun

9-Apr-05 20:27

Hi to all, I am programming a dialog based application. My problem is, if I close the program, I want to prompt a message box asking the user if they really want to exit the application, if the user choose no, the application continues, if the user choose yes, the application exits.

Thank you in advance,

quistiun

Re: dialog box problem

Steve Mayfield9-Apr-05 21:07

Steve Mayfield

9-Apr-05 21:07

Try overriding OnClose() and either call CDialog::OnClose() or just return, based on the return value of your confirmation dialog box.

Steve

Re: dialog box problem

quistiun9-Apr-05 21:25

quistiun

9-Apr-05 21:25

Tnx a lot... I'll try it..

Exception handling problem.

Nick_Kisialiou9-Apr-05 20:09

Nick_Kisialiou

9-Apr-05 20:09

What am I doing? I want my template class to send an exception when one of input parameters is out of range.
How am I doing that? The main parts of the source code are presented below.
Does it work? Yes, it does. The exception is being sent and caught in the program passing wrong input parameters, error message is successfully displayed.
So, what is wrong? I receive a strange warning during compilation: Warning C4290: C++ exception specification ignored except to indicate a function is not __declspec(nothrow)
I don't know what's wrong with it, but I don't like warnings... especially those that I don't understand. If you can tell me what the compliler (MS VC .NET) wants from me I will be very grateful to you. Thank you!!!

#define CLogicError std::logic_error
#define STRING std::string

class CMyError : public CLogicError
{
public:
CMyError(const STRING& what_arg) : CLogicError(what_arg) {};
};

template<class T> class TMy
{
...
T& operator()(const int nRow, const int nCol) throw (CMyError);
...
}

template<class T> T& TMy<T>::operator()(const int nRow, const int nCol) throw (CMyError)
{
...
}

The warning points to the line
T& operator()(const int nRow, const int nCol) throw (CMyError);
in class definition. It does not seem to like "throw (CMyError)" part. If I change it to "throw()" the compiler stops complaining.

Re: Exception handling problem.

S. Senthil Kumar9-Apr-05 21:03

S. Senthil Kumar

9-Apr-05 21:03

It simply means that the compiler doesn't support exception specifications (semantically). That is, the compiler does not generate code to enforce the rule that the function can't throw *any* exception other than CMyError. You can try it out, try throwing any other exception, it will still be caught in the corresponding catch block, but according to the standard, it must result in a call to unexpected and then aborting of the program.

throw() means that your function is not allowed to throw exceptions at all, I don't know why that doesn't result in a warning? May be VC++.NET supports just that special case?

Regards
Senthil
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