Re: What is the size of an integer? - C / C++ / MFC Discussion Boards

What is the size of an integer?

vikas amin23-Jan-06 22:08

vikas amin

23-Jan-06 22:08

What is the size of
int
char
float

in Windows 2000 ??

Vikas Amin
Embin Technology
Bombay

Re: What is the size of an integer?

toxcct23-Jan-06 22:14

toxcct

23-Jan-06 22:14

void main(void) {
    printf("int   : %d\n", sizeof(int));
    printf("char  : %d\n", sizeof(char));
    printf("float : %d\n", sizeof(float));
}

will output :

int   : 4
char  : 1
float : 4

but notice this : an int is much dependant of the processor architecture than the OS. so, under Windows2000, it may be 4 bytes if the processor handles 32 bits ints, or 8 bytes if it handles 64 bits ints...

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Re: What is the size of an integer?

Owner drawn23-Jan-06 22:23

Owner drawn

23-Jan-06 22:23

toxcct wrote:
an int is much dependant of the processor architecture than the OS

What about the compiler.

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Re: What is the size of an integer?

toxcct23-Jan-06 22:26

toxcct

23-Jan-06 22:26

Owner drawn wrote:
What about the compiler.

well, i said that "an int is much dependant of the processor architecture than the OS" if the compiler is well designed/implemented...

(standard def...)

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Re: What is the size of an integer?

vikas amin23-Jan-06 22:28

vikas amin

23-Jan-06 22:28

I have a char array
when i incremnt the pointer to the array
it increments 4 bytes not 1 byte.
Is it that a console application takes anytype of padding for char array .

Vikas Amin
Embin Technology
Bombay

Re: What is the size of an integer?

toxcct23-Jan-06 22:29

toxcct

23-Jan-06 22:29

is you pointer an int* ? Confused | :confused:

post a few sample showingwhat you're doing please.

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[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: What is the size of an integer?

vikas amin23-Jan-06 23:06

vikas amin

23-Jan-06 23:06

hi toxcct
Its fine i find out the problem
thank
you

Vikas Amin
Embin Technology
Bombay

Re: What is the size of an integer?

toxcct23-Jan-06 23:08

toxcct

23-Jan-06 23:08

tell us how !!!

man, forums are for sharing ! D'Oh! | :doh:

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: What is the size of an integer?

Prakash Nadar24-Jan-06 17:43

Prakash Nadar

24-Jan-06 17:43

he read the msdn document i guess Laugh | :laugh:

-Prakash

change groupbox color (MFC)

waxie23-Jan-06 21:56

waxie

23-Jan-06 21:56

Is there a way to change the background color of a groupbox?

Thanks, Rose | [Rose]

waxie

Re: change groupbox color (MFC)

Owner drawn23-Jan-06 22:59

Owner drawn

23-Jan-06 22:59

Since groupboxes are also buttons, I guess you have to owner draw(not me Poke tongue | ;-P

) them.

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--Owner Drawn Rose | [Rose]

--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord Rose | [Rose]

Re: change groupbox color (MFC)

waxie23-Jan-06 23:31

waxie

23-Jan-06 23:31

Well, i guess I have no choice then. I should do you. Laugh | :laugh:

Now I see where you got your name. How stupid of me to realize it just now.

waxie

Re: change groupbox color (MFC)

toxcct23-Jan-06 23:35

toxcct

23-Jan-06 23:35

Owner drawn wrote:
Since groupboxes are also buttons

you meant CStatic, didn't you ?

TOXCCT >>> GEII power
[toxcct][VisualCalc 2.20][VCalc 3.0 soon...]

Re: change groupbox color (MFC)

Owner drawn23-Jan-06 23:38

Owner drawn

23-Jan-06 23:38

toxcct wrote:
you meant CStatic, didn't you ?

No.

Take a look at BS_GROUPBOX.

Jesus Loves Rose | [Rose]

<marquee direction="up" height="40" scrolldelay="1" step="1" scrollamount="1" style="background:#aabbcc;border-bottom:thin solid 1px #6699cc">
--Owner Drawn Rose | [Rose]

--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord Rose | [Rose]

Re: change groupbox color (MFC)

toxcct23-Jan-06 23:44

toxcct

23-Jan-06 23:44

i'm struggling...

what about SS_GRAYFRAME CStatic style ? OMG | :OMG:

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Re: change groupbox color (MFC)

Owner drawn23-Jan-06 23:50

Owner drawn

23-Jan-06 23:50

toxcct wrote:
i'm struggling...

It happens...

MSDN about group box: The control is created as a BUTTON class with the BS_GROUPBOX, WS_CHILD, and WS_GROUP styles.

Jesus Loves Rose | [Rose]

<marquee direction="up" height="40" scrolldelay="1" step="1" scrollamount="1" style="background:#aabbcc;border-bottom:thin solid 1px #6699cc">
--Owner Drawn Rose | [Rose]

--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord Rose | [Rose]

context menu

Learner200623-Jan-06 21:53

Learner2006

23-Jan-06 21:53

Hello,
Can anyone tell me how i can create a context menu for my SDI Application?

God is Merciful...

Re: context menu

Owner drawn23-Jan-06 22:02

Owner drawn

23-Jan-06 22:02

This will help you...

http://www.functionx.com/visualc/howto/contextmenu.htm[^]

There are other articles also. Take a look at them too.

Jesus Loves Rose | [Rose]

<marquee direction="up" height="40" scrolldelay="1" step="1" scrollamount="1" style="background:#aabbcc;border-bottom:thin solid 1px #6699cc">
--Owner Drawn Rose | [Rose]

--Nothing special
--Defeat is temporary but surrender is permanent
--Never say quits
--Jesus is Lord Rose | [Rose]

winpcap undeclared

leenmie23-Jan-06 21:30

leenmie

23-Jan-06 21:30

I'm using winpcap. I get error when I use find_alldevs_ex() and such function _ex (indentifier undeclared error) , but I could use find_alldevs() and other with no problem. Anyone had this problem before, plz give me a guide.

Binary to Text File

PremalathaP23-Jan-06 21:21

PremalathaP

23-Jan-06 21:21

How to convert a binary file with extension .LRN to .Txt file in C++?

Premalatha

Re: Binary to Text File

toxcct23-Jan-06 21:25

toxcct

23-Jan-06 21:25

and what is the .lnr file supposed to contain please ?

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Re: Binary to Text File

PremalathaP23-Jan-06 21:30

PremalathaP

23-Jan-06 21:30

.LRN file is a binary file which contains some float values of different parameters.

Eg:
max_ceiling : 47000
plan_area : 516
mach_cr : 0.63

Otherwise just tell me how to convert a binary file into a text file

Thanks & Regards,
Premalatha

Re: Binary to Text File

Cedric Moonen23-Jan-06 21:33

Cedric Moonen

23-Jan-06 21:33

PremalathaP wrote:
max_ceiling : 47000
plan_area : 516
mach_cr : 0.63

For me, this looks not like a binary file. It is simple text format, the only thing is that it doesn't have a txt extension. If that bother you, you can still change the extension manually but I don't think this is a good idea. If you want to open it, you just have to right click on it and choose "open with".

Re: Binary to Text File

PremalathaP23-Jan-06 21:37

PremalathaP

23-Jan-06 21:37

Actually this is the text file format of that LRN file.

The content of that LRN file is :

ÌÌÌÌÌÌÌÌ SVRGNX05€IN-APM€ ˜7G D®G!? €;E ÈB # xìÃd*; TˆF `êF TìF zC zC €˜CÍÌL? zC
×#? ŒC @? €˜CÍÌL? @@ ÍÌL? RCÍÌL? HC €˜C zC HC /C þÿF HC 4C C pA þÿF HC 4C C þÿF þÿF ŒF`å0? 4C @F zC *C ¤p? ¸ÓF ßà£@€BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK €BLANK zÅ @œE @F @œF `êF ¸G @G È/G PCGñq?•`q?„Øq?Hmr?ôt?¬Êv?“Æx?—V{?~?IK?›U?è¤?k€?ÍX€?w-?{ˆ‚?Â†ƒ?ÀÏ„?œm†?Xsˆ?Îü’?t$“?k`“?"«“?€”?rÜ•?
Ü–?R'˜?!È™?Ó›?» ?
7 ?s ?¾ ?`“¡?Zð¢?™ð£?2=¥?¤ß¦?>í¨? @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ ÀÚF ÀÚF ÀÚF ÀÚF ÀÚF úÄ úE éF `jG `jG `jG `jG ‡C €˜C €˜CÍÌL?ÍÌL?ÍÌL?ÍÌL? @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ @œÅ zÄ @œF ¸G G ˜7G ˜7G ˜7G ˜7G \B \B @A Á ¨Á Â Â Â Â XÂ XÂ XÂ ’Â ’Â ’Â ’Â ’Â ’Â ®Ga?®Ga?®Ga?®Ga? ÍÌ,@ €@ìQø¿fff¿ÍÌÌ=oƒ: ÍÌL> ¦›D;
×#< ff–@ @ffŽAš™Àš™Ù?ff¶@ÍÌLÀff†@ )\ï?š™@{®Gázt? {®Gáz„? š™™™™™©? š™™™™™É? Ð? š™™™™™É? š™™™™™©? ü©ñÒMb`? {®Gáz„? Ð? ÿ ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ“ˆ

Re: Binary to Text File

Cedric Moonen23-Jan-06 21:41

Cedric Moonen

23-Jan-06 21:41

Geez, why don't you explain clearly your problem when asking your question ?

And, why do you want to change this file into text file ?
The only way to do it is to know EXACTLY what is stored in the file, in which order, ... So you'll have to do EXACTLY the same operation as done for creating the file but in the other way (so extract the data). Then when you have extracted all the data, you can print them in another file (with fprintf for example, or using the streams from the STL).

But I think you don't know what is the exact file format, am I right ? So, you can't do what you are trying to do. Or, you'll have to search on internet for the descritption of the file format and then load it yourself.

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