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Hi,
Console Application? the old adage is: "When in Doubt, Print more Out". The Macro's
__LINE__ and
__FILE__ are realy handy there. Write a Dump Function, and do something like:
Dump(__FILE__,__LINE__,"Still Alive")
That is how you narrow down problems. You know your code, because you wrote it. It is hard to see how an Intellitrace debugger can have a better idea about what you wanted to write in the first place than that you can have. (It could work well in those highly structured Wizzard ridden area's such as Web Matrix. There the Author has no notion of what was written on his behalf, the only thing known to him there is what he wanted to achieve.
Commandline Programs? Not very likely Candidates for that technology.
When it trashes, you can narrow down where it happens. Also, occasional trashing tends to happen in retail code. Not much code is tested long enough in debug mode to catch an occasional trashing.
Even MS Word trashes occasionally, and that is also not always a software issue of your making.
Anyway, Debuggers don't work very well with retail code. LogFiles Do! Also, You Don't need to log in Text, You can create your own logging format, plus a (windows) app that can read and display the info.
If your code is perfect, but on occasion Windows trashes it anyways, there is little you can do (apart from re-writing Windows)
However, What are the Consequences of trashing. Did the User loose their input(inconvenience) or was an entire network or database crashed(Unmitigated Disaster). The former, Let it Go, if it is infrequent. The Latter: write your software mindfull of this, and be aware of the transaction technology you implement or wrote.
Hope this is Helpful,
Bram van Kampen
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please send me topics or data
that are related to loops&functions.i am waiting for your reply.....
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You can find lots of information on this by a simple Google search or by picking up a C++ reference guide, or even by reading some of the fine articles here on the CodeProject website.
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What do you want to know? That's a really vague question... if you don't have a specific question, you're better off going to Google[^].
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maheen zahra wrote: please send me topics
Financial markets.
maheen zahra wrote: <layer> or data
Get it off CNBC.
maheen zahra wrote: that are related to loops&functions
while(stillstupid || stilllazy)
{
buybook(*dollars);
readbook(*brain);
understand(*hardwork);
)
makemoney(*moredollars);
How is that?
==============================
Nothing to say.
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What about in assembly? 
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move edi edi
pop ebp esi
pop ebp+4 esx
pop ebp+8 edx
cmp esx edx
jne life + 32
push *dollars
call buybook
etc etc etc
(actually, thats a load of crap, but I dont write assembly, I just have to understand it )
==============================
Nothing to say.
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thank you about infomations
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Great answer! 5+
I'm not really sure that the read function call will work though. I have this feeling the parameter will cause a null pointer exception.
"With sufficient thrust, pigs fly just fine."
Ross Callon, The Twelve Networking Truths, RFC1925
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Even better answer 5! 
==============================
Nothing to say.
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Hi,
I Replied. What were you going to do if I didn't??( Or of nobody Did?)
Shoot all those that did not reply?? This community is not one of little slaves kept locked up until you issue a demand for information!
Please read the Posting notes before you ask a question on this forum!
Bram van Kampen
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<>&<a href=""></a><a href=""></a>[<a href="" target="_blank"></a>]
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Your question only contains some tags.
Please edit your question.
0100000101101110011001000111001011101001
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Hi everyone,
Have a nice day, please help me following concern
I know that, Function pointer in C++ can point to an address of global function, or static public function of a class
For example:
typedef float (MyFunction)(float a, float b);
//Global function
float add(float a, float b)
{
return a+b;
}
Class Math
{
public static float add(float a, float b)
{
return a+b;
}
}
void main(char*args[])
{
MyFunction*fp;
//Point to global function
fp = add;
printf("%f",fp(1,2))
//Point to public static function
fp = Math::add;
printf("%f",fp(5,10));
}
But it can not point to address of a function of a specified object.
For example, function add in calss Math is not static
Class Math
{
public float add(float a, float b)
{
return a+b;
}
}
The following is impossible (compile error)
void main(char*args[])
{
MyFunction*fp;
//Point to public function of specified object instance
Math*m = new Math();
fp = m->add;
printf("%f",fp(5,10));
}
But it is the thing i really want. Because i want to know function add is executed in context of what object (in this case we can know it is object m).
Above example is something like the concept Delegate in .NET.
Is there any design pattern to make such a delegate for C++?
Thanks,
Tin,
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Class Math <--- error
{
public float add(float a, float b)
{
return a+b;
}
}<--- error
Firstly , lowercase. Class Math should be class Math
secondly , semicolon
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I build application using visual studio 2005 in release mode without MFC. but I need to
install vc2005 run time to run the application . is there any settings in visual studio so
that without installing vc2005 run time I can run my application .
Trioum
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You can link your application with static copies of the library rather than the shared DLL copies. There is a setting for the linker to do this.
Remember that linking statically increases the size of your EXE / DLL because all the required C Runtime Library and MFC / ATL libraries are included in your application. Of course, this is the tradeoff you make when you decide to not include the VS2005 redistributables in your kit / installation package.
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Where I found this setting
Trioum
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Project -> Properties -> Configuration Properties -> C/C++ -> Code Generation -> Runtime Library.
Set this to /MT and /MTd for Release mode and Debug mode respectively.
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It is already set , if I installed vcredist_x86.exe then exe run , if uninstall then exe do not run .
i am using Use Standard Windows Libraries in release mode
Trioum
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Besides the setting for the C RTL (/MT etc...) you also need to check the Configuration Properties -> General for the "Use of MFC" and "Use of ATL". Both of those have a selection for "in a static library". The default to "use standard windows libraries" which means "shared DLL".
I use VS2008 but I think they are in the same place in VS2005
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You don't HAVE to install visual studio, there's probably some dependencies that you need to distribute along with your application so that it'll be complete. Use a tool like Dependency Walker[^] to figure out what libraries you may be missing. You can then either include those libraries in your distribution OR build them into your executable statically (depending on what libraries you may be missing).
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I copied some sample code from msdn to create a socket, and modified it for testing. I want to broadcast a udp dgram, but I cant figure out what to send. I'm using ethereal to examine what SQL Management sends, and I'm trying to copy the behavior. So it looks like my first send is accurate, but I'm not sending the correct data out for a response back from sqlbrowser. I'm convinced if I send the right stuff, I will get my responses back from all the SQL servers. If i'm in the wrong forum sorry, didn't really know where to post it.
I tried 0x02 in the send buffer.
iResult = getaddrinfo(
"255.255.255.255",
"ms-sql-m",
&hints,
&result
);
I think this is what SQL Management sent
0000 ff ff ff ff ff ff 00 13 72 36 67 30 08 00 45 00 ........ r6g0..E.
0010 00 1d 6f 9a 00 00 80 11 07 8a c0 a8 03 04 ff ff ..o..... ........
0020 ff ff 05 8b 05 9a 00 09 2f 0b 02 ........ /..
And this is what I sent
0000 ff ff ff ff ff ff 00 13 72 36 67 30 08 00 45 00 ........ r6g0..E.
0010 00 22 8c 51 00 00 80 11 ea cd c0 a8 03 04 ff ff .".Q.... ........
0020 ff ff 06 bc 05 9a 00 0e 9c 8f 30 78 32 66 30 62 ........ ..0x2f0b
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