C / C++ / MFC Discussion Boards

Re: string size according to user's input

dona jain9-Aug-07 0:58

9-Aug-07 0:58

char str[100]
i dont want it this way ..i want that all the characters which a user give i/p can be allocated memory...that means we dont know yhe exact array size

Re: string size according to user's input

jhwurmbach9-Aug-07 1:02

jhwurmbach

9-Aug-07 1:02

Do you get them blockwise or char by char?
For blocks, a linked list of blocksized buffers would be the way to go.
For single chars, you could assemble blocks by yourself (get chars until you have, say, 512 and then add this buffer to your linked list and make a new buffer of size 512).

Note that there must be any amount of ready-made solutions for that on *specialized C-Programming pages*. Not in the C++/MFC forum of Codeproject.

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: string size according to user's input

David Crow9-Aug-07 3:21

David Crow

9-Aug-07 3:21

dona jain wrote:
Can we do it without asking the user??? Is any other Way?

Yes. Assign each character that the user types to a char variable. Dynamically grow an array and append the char to it each time. Note that this reeks of inefficiency.

Why don't you tell us what you are ultimately trying to achieve so that we may possibly offer a better solution?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

chat window to chat urgent please ?

p_8-Aug-07 23:51

8-Aug-07 23:51

hi masters
i have made an application in vc++ using dialog based
i have a button so i want when i click this it ask for some system ip address
and when i enter ip address and click then it connect to that system
and a window appwar for chat between those two systems
please guide me
thanks Rose | [Rose]

That would make about EUR100 per hour.

jhwurmbach9-Aug-07 0:00

jhwurmbach

9-Aug-07 0:00

p_ wrote:
urgent please

What do you think where you are here? Confused | :confused:

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: That would make about EUR100 per hour.

p_9-Aug-07 0:04

9-Aug-07 0:04

sorry for that
i think my view goes in wrong direction Rose | [Rose]

yes, certainly. here

toxcct9-Aug-07 0:14

toxcct

9-Aug-07 0:14

Download here[^], and be happy Cool | :cool:

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Re: yes, certainly. here

p_9-Aug-07 0:29

9-Aug-07 0:29

thanks for this sir
but i want it through coding in vc++
thanks Rose | [Rose]

Re: yes, certainly. here

tyagineha9-Aug-07 0:41

tyagineha

9-Aug-07 0:41

hye,
i m also looking for this topic...
can u send me ur project.
my id is gemini_5jun@yahoo.com

Re: yes, certainly. here

p_9-Aug-07 0:58

9-Aug-07 0:58

i am sorry becoz my project is not complete
and i am working on it
i have only forms and login coding for user

Re: chat window to chat urgent please ?

SnaKeBeD9-Aug-07 2:29

SnaKeBeD

9-Aug-07 2:29

hi master,

hope u are still searcing for the answer, search the article in code project for vc++ code for LAN chatting .If u need the code for Internet chat please reply or mail me Roll eyes | :rolleyes:

...

swaroop

Re: chat window to chat urgent please ?

p_9-Aug-07 21:12

9-Aug-07 21:12

thanks sir\
please send me that sir
again thanks

Re: chat window to chat urgent please ?

David Crow9-Aug-07 3:23

David Crow

9-Aug-07 3:23

So exactly which part do you need help with? What do you have working so far?

"A good athlete is the result of a good and worthy opponent." - David Crow

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

User breakpoint called from code at 0x77f813b1

Rajasegar8-Aug-07 23:31

Rajasegar

8-Aug-07 23:31

I am trying to debug a program in release build.
But after some time i getting a message like

"User breakpoint called from code at 0x77f813b1"

how to rectify this one?
What actually is the problem here?
Please help me.............

R@j@$eg@r

Re: User breakpoint called from code at 0x77f813b1

toxcct8-Aug-07 23:41

toxcct

8-Aug-07 23:41

have you set a breakpoint somewhere ?

have you tried to step into the debugger and watch your variables to understand why it was crashing ?

BTW, what's your IDE ?

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Re: User breakpoint called from code at 0x77f813b1

Rajasegar8-Aug-07 23:43

Rajasegar

8-Aug-07 23:43

No, I removed all the breakpoints in my program.

Actully i am using Visual studio 6.0...

R@j@$eg@r

[Message Deleted]

toxcct8-Aug-07 23:47

toxcct

8-Aug-07 23:47

[Message Deleted]

Re: User breakpoint called from code at 0x77f813b1

Mark Salsbery9-Aug-07 5:56

Mark Salsbery

9-Aug-07 5:56

toxcct wrote:
you cannot debug a program compiled in release mode

Hogwash

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: User breakpoint called from code at 0x77f813b1

Stephen Hewitt9-Aug-07 20:09

Stephen Hewitt

9-Aug-07 20:09

I come across this misconception all the time; there is no truth to it. There is nothing to stop you from enabling debug information for release builds. I do it all the time. The only issue is the MSVC IDEs don’t do this by default. If I made it they would.

Steve

Re: User breakpoint called from code at 0x77f813b1

toxcct9-Aug-07 21:21

toxcct

9-Aug-07 21:21

we're talking about a user who don't even know the fundamental differences between debug and release... do you think he could have customized its settings by any chance ? Unsure | :~

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Re: User breakpoint called from code at 0x77f813b1

Stephen Hewitt9-Aug-07 21:24

Stephen Hewitt

9-Aug-07 21:24

My response was to your assertion that, "you cannot debug a program compiled in release mode". This is simply not true.

Steve

Re: User breakpoint called from code at 0x77f813b1

jhwurmbach8-Aug-07 23:44

jhwurmbach

8-Aug-07 23:44

Rajasegar wrote:
I am trying to debug a program in release build.

Why?
You definitely should use the debug build for that.

Though I speak with the tongues of men and of angels, and have not money, I am become as a sounding brass, or a tinkling cymbal.
George Orwell, "Keep the Aspidistra Flying", Opening words

Re: User breakpoint called from code at 0x77f813b1

Rajasegar8-Aug-07 23:47

Rajasegar

8-Aug-07 23:47

Okay, we used to debug from release builds in our development environment,
btw i will try to debug it from debug build, will this solve my problem,
but i would like to know what exactly is the problem...........

R@j@$eg@r

Re: User breakpoint called from code at 0x77f813b1

toxcct8-Aug-07 23:48

toxcct

8-Aug-07 23:48

Rajasegar wrote:
but i would like to know what exactly is the problem...........

how can we know ?

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Re: User breakpoint called from code at 0x77f813b1

KaЯl9-Aug-07 0:03

KaЯl

9-Aug-07 0:03

Often this problem comes from memory which was corrupted somewhere in the application. So check in your code if you do not write outside an array, work with freed pointers, and so on.

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