dev-cpp-users Mailing List for Dev-C++ (Page 3)

two things:
1. getc extracts an ascii character from the file to get its corresponding
integer value u must subtract 48 from it
2. a=a+c also adds EOF to a which is -1 u need to check for EOF before u do
a=a+c
hope this helps
Rob
----- Original Message -----
From: "Gabriel Alejand Yañez Lemus" <gab...@ud...>
To: <dev...@li...>
Sent: Monday, November 22, 2004 10:20 PM
Subject: [Dev-C++] question about file


> Hi!!
> I made a source code in C for read numbers from a file, plus them and show
> the result on screen.This is the code.
>
> #include <stdio.h>
> #include <stdlib.h>
>
> int main()
> {
>     FILE *nombre;
>     int c,a=0;
>
>     nombre = fopen("Prueba.txt", "r");
>
>     if (nombre == NULL)
>     {
>         printf("El archivo no existe \n");
>         exit (EXIT_FAILURE);
>     }
>     else
>     {
>         do
>         {
>             c = getc(nombre);
>             a=a +c;
>
>         }
>         while (c != EOF);
>     }
>     printf("%d",a);
>     fclose(nombre);
>
>     return EXIT_SUCCESS;
> }
>
> I don't know why this code doesn't work. The file "prueba.txt" contains
> the numbers 2 3 and 3.The program must do "2+3+3" and show on screen "8"
> but i don't know what's wrong, the program shows "151".
>
> Help me please!
>
> Anybody have a good day!
>
>
>
>
>
>
> -------------------------------------------------------
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Your program isn't reading numbers from the file. It is reading
characters.

If your file constains "123" your program will add
'1' + '2' + '3' which is
49 + 50 + 51

Also, your program is adding the EOF return value. You should test for EOF
before adding...

If you want to convert a single ascii digit to it's integer value you have
to do (c - '0').

Also, since you haven't specified if your numbers may be more than
single-digit or if they are separated by something, we can't really help
with suggestions for better methods to read from the file.

/Per W

On Mon, 22 Nov 2004, Gabriel Alejand Ya=F1ez Lemus wrote:

> Hi!!
> I made a source code in C for read numbers from a file, plus them and sho=
w
> the result on screen.This is the code.
>
> #include <stdio.h>
> #include <stdlib.h>
>
> int main()
> {
>     FILE *nombre;
>     int c,a=3D0;
>
>     nombre =3D fopen("Prueba.txt", "r");
>
>     if (nombre =3D=3D NULL)
>     {
>         printf("El archivo no existe \n");
>         exit (EXIT_FAILURE);
>     }
>     else
>     {
>         do
>         {
>             c =3D getc(nombre);
>             a=3Da +c;
>
>         }
>         while (c !=3D EOF);
>     }
>     printf("%d",a);
>     fclose(nombre);
>
>     return EXIT_SUCCESS;
> }
>
> I don't know why this code doesn't work. The file "prueba.txt" contains
> the numbers 2 3 and 3.The program must do "2+3+3" and show on screen "8"
> but i don't know what's wrong, the program shows "151".
>
> Help me please!
>
> Anybody have a good day!
>
>
>
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://productguide.itmanagersjournal.com/
> _______________________________________________
> Dev-cpp-users mailing list
> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Hi!!
I made a source code in C for read numbers from a file, plus them and show
the result on screen.This is the code.

#include <stdio.h>
#include <stdlib.h>

int main()
{
    FILE *nombre;
    int c,a=0;

    nombre = fopen("Prueba.txt", "r");

    if (nombre == NULL)
    {
        printf("El archivo no existe \n");
        exit (EXIT_FAILURE);
    }
    else
    {
        do
        {
            c = getc(nombre);
            a=a +c;

        }
        while (c != EOF);
    }
    printf("%d",a);
    fclose(nombre);

    return EXIT_SUCCESS;
}

I don't know why this code doesn't work. The file "prueba.txt" contains
the numbers 2 3 and 3.The program must do "2+3+3" and show on screen "8"
but i don't know what's wrong, the program shows "151".

Help me please!

Anybody have a good day!

Good day.

Sorry for my English, I'm Russian..
I'm using Dev-C++ 4.8.9.10 and have following problems:
I'm trying to create UDP server socket listening port 57(dhcp).
The code is:
-----BEGIN_CUT-----
   unsigned int port = 57;
   int mySocket = socket(AF_INET, SOCK_DGRAM, 0);
   struct sockaddr_in server;
   server.sin_family = AF_INET;
   server.sin_port = htons(port);
   server.sin_addr.s_addr = INADDR_ANY;
   listen(mySocket, 5);
-----END_CUT-----
When I'm trying to run program, it cannot start listening...
Where is my mistake?

-- 
Best regards, Владимир 'insider' Прохоров
mailto:in...@vp...
ICQ#:179598229
The Bat! 3.0.1.33 @ Windows 2000 (Build 2195 Service Pack 4)
Tuesday, November 23, 2004 12:26:54 AM

There is one dll someone gave me. he wrote the dll in c. I have to use
a C program to call a function in that dll. How to do it? how to use a
c dll from a c program?


			
---------------------------------
Do you Yahoo!?
 The all-new My Yahoo! – Get yours free!    

Dnia 2004-11-22 18:24, Użytkownik Pascal napisał:
> Anyone use the cg toolkit for NVidia with devcpp?

http://www.g-productions.net/list.php?c=fl_devpak
But I haven't use it.

Marcin

Anyone use the cg toolkit for NVidia with devcpp?

Hello,

Where find the help file win32api.hlp and devcpp.hlp in french language 
please or how decompile for translate?

First of all - i don't like a construct:

  if (strcat(x,y()) == NULL) ...

since that implies that x is NULL - strcat doesn't perform any
reallocations, it just returns the address of it's first parameter! You
should have checked up on x long before, i.e. when you allocated x. Unless
you are using a nice and current C++ compiler, in which case the new
operator don't return a NULL.

Second: Why bother with a list/queue/vector/... of lines. All you need is
the current and previous lines in memory. Why? If you previous line ends
with a // comment and your current line starts with white space followed
by //, that is enough to activate conversion mode. Emit previous line
but with the comment using "/*".

Then just pricess lines until you find a line that doesn't start with
white space followed by "//". Emit previous line but with an ending "*/".

This state-machine concept allows you to handle a 10-million-line comment
without requiring any extra memory. All you need is memory enough for two
arbitrary long lines.

/Per W

On 19 Nov 2004, Curious Student wrote:

> I am writing a program that will take a string that has a C source file and it would format all the multi-line comments like these:
>
>
> //Jingle bells, jingle bells, jingles all the way
> //O what fun it is to ride in a one-horse open sledge
> //yeah, jingle bells....
>
>
> into
>
>
> /*Jingle bells, jingle bells, jingles all the way
> O what fun it is to ride in a one-horse open sledge
> yeah, jingle bells....*/
>
>
> or the lines,
>
>
> i=0; //Isn't it nice
> //today? hehehehe....
>
>
> into
>
>
> i=0; /*Isn't it nice
> today? hehehehe...*/
>
>
> The code can be downloaded from here.
>
> http://www.vbforums.com/attachment.php?s=&postid=1841801
>
> I've finished coding it but I'm still not through debugging it.
>
> I've taken a linked list to represent a single comment block that needs to be formatted. Each node would represent one line of source code that contains a comment.  The list is represented by a struct LOC that looks like this:
>
>
> /*Represent a line of code that has a // comment in it
> The purpose of this structure is to store those lines of
> source code that:
>
>   (1) Contain a // in them
>   (2) Appear in a series
>   (3) Are a part of one multi-line comment that is to be formatted
>
>   For more information, please read the "Comments to be targetted" section
>   in the specification file "Read Me.txt" in this project
> */
> struct LOC
> {
>     char *Text; //Text of the line containing the comment
>
>     struct LOC *NextLine; //Pointer to the next comment
>
>     int Len; //length of the line containing the comment
>
>     int Position; //Starting position of the comment in the line of text
>
>     int WasFirstNonSpaceChar; /*A boolean value indicating if the comment
>                               was the first non-space character in the line
>                               of text*/
> };
>
>
> I'm facing a problem in my FormatBlock function. Particularly in this while loop within the FormatBlock function.
>
>
>
> while(head!=NULL)
>     {
>         if(strcat(NewBlock, Replace(head->Text, head->Position, head->Position+1, "  "))==NULL)
>             return NULL;
>
>         if(head->NextLine==NULL)
>             strcat(NewBlock, "*/");
>         else
>             strcat(NewBlock, sNewLine);
>         head=head->NextLine;
>     }
>
>
>
> What happens is that in this while loop, somehow, while i'm only traversing the loop and replacing, say, node 3 out of 5 nodes in my linked list, the text of the 5th node in the list gets changed somehow. Just before this loop, all the elements are intact. I put printf statements at many steps and discovered that the problem is only when it comes to the 2nd element of the linked list within this loop that it changes the 5th element.
>
> For a test, I am currently reading the comments from a file that I created called "Code.c" and put in C:.
>
> You will find the file Code.c also within the attachment linked above. Please download it and put the Code.c file in C: and then walk through the code.
>
>
> Thoughts as to what might be causing this problem?
>
>
>
> PS: I know there's a memory leak here in this line.
>
> if(strcat(NewBlock, Replace(head->Text, head->Position, head->Position+1, "  "))==NULL)
>
> This is just rough work. I have a day job, and I wrote that code in a hurry. I will remove all leaks. Also the naming convention sucks because I haven't found a convention to stick to, that is to my taste. I still have to land on one. No typedef used instead of struct LOC* all the time.

I am writing a program that will take a string that has a C source file and=
 it would format all the multi-line comments like these:=0A=0A=0A//Jingle b=
ells, jingle bells, jingles all the way=0A//O what fun it is to ride in a o=
ne-horse open sledge=0A//yeah, jingle bells....=0A=0A=0Ainto=0A=0A=0A/*Jing=
le bells, jingle bells, jingles all the way=0AO what fun it is to ride in a=
 one-horse open sledge=0Ayeah, jingle bells....*/=0A=0A=0Aor the lines,=0A=
=0A=0Ai=3D0; //Isn't it nice=0A//today? hehehehe....=0A=0A=0Ainto=0A=0A=0Ai=
=3D0; /*Isn't it nice=0Atoday? hehehehe...*/=0A=0A=0AThe code can be downlo=
aded from here. =0A=0Ahttp://www.vbforums.com/attachment.php?s=3D&postid=3D=
1841801=0A=0AI've finished coding it but I'm still not through debugging it=
.=0A=0AI've taken a linked list to represent a single comment block that ne=
eds to be formatted. Each node would represent one line of source code that=
 contains a comment.  The list is represented by a struct LOC that looks li=
ke this:=0A=0A=0A/*Represent a line of code that has a // comment in it=0AT=
he purpose of this structure is to store those lines of=0Asource code that:=
=0A=0A  (1) Contain a // in them=0A  (2) Appear in a series=0A  (3) Are a p=
art of one multi-line comment that is to be formatted=0A=0A  For more infor=
mation, please read the "Comments to be targetted" section=0A  in the speci=
fication file "Read Me.txt" in this project=0A*/=0Astruct LOC=0A{=0A    cha=
r *Text; //Text of the line containing the comment=0A=0A    struct LOC *Nex=
tLine; //Pointer to the next comment=0A=0A    int Len; //length of the line=
 containing the comment=0A=0A    int Position; //Starting position of the c=
omment in the line of text=0A=0A    int WasFirstNonSpaceChar; /*A boolean v=
alue indicating if the comment =0A                              was the fir=
st non-space character in the line =0A                              of text=
*/=0A};=0A=0A=0AI'm facing a problem in my FormatBlock function. Particular=
ly in this while loop within the FormatBlock function.=0A=0A=0A=0Awhile(hea=
d!=3DNULL)=0A    {=0A        if(strcat(NewBlock, Replace(head->Text, head->=
Position, head->Position+1, "  "))=3D=3DNULL)=0A            return NULL;=0A=
        =0A        if(head->NextLine=3D=3DNULL)=0A            strcat(NewBlo=
ck, "*/");=0A        else=0A            strcat(NewBlock, sNewLine);=0A     =
   head=3Dhead->NextLine;=0A    }=0A=0A=0A=0AWhat happens is that in this w=
hile loop, somehow, while i'm only traversing the loop and replacing, say, =
node 3 out of 5 nodes in my linked list, the text of the 5th node in the li=
st gets changed somehow. Just before this loop, all the elements are intact=
. I put printf statements at many steps and discovered that the problem is =
only when it comes to the 2nd element of the linked list within this loop t=
hat it changes the 5th element.=0A=0AFor a test, I am currently reading the=
 comments from a file that I created called "Code.c" and put in C:.=0A=0AYo=
u will find the file Code.c also within the attachment linked above. Please=
 download it and put the Code.c file in C: and then walk through the code.=
=0A=0A=0AThoughts as to what might be causing this problem? =0A=0A=0A=0APS:=
 I know there's a memory leak here in this line.=0A=0Aif(strcat(NewBlock, R=
eplace(head->Text, head->Position, head->Position+1, "  "))=3D=3DNULL)=0A=
=0AThis is just rough work. I have a day job, and I wrote that code in a hu=
rry. I will remove all leaks. Also the naming convention sucks because I ha=
ven't found a convention to stick to, that is to my taste. I still have to =
land on one. No typedef used instead of struct LOC* all the time.=20

Hello,
I was wondering, how do I go about getting a command prompt to appear in =
the background with my GUI application.
If I compile and the flu_combo_box.cpp example I see the GUI app with a =
console to display the output of the printf() commands.
I have tried removing the -DWIN32 compiler parameter, setting it as a =
win32 console app (which wouldn't let it compile btw).

what can I do, is there some sort of debug option for dev-cpp-4990 with =
GCC-3.3.3.
I am on a win2k machine.

Guillermo Gutierrez
Market Scan Information Systems
Software Q.A. Supervisor
(818) 575-2000 x2427
ggu...@ma...

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fl...@ea...
http://lists.easysw.com/mailman/listinfo/fltk

-------------------------
Best Regards
Youngs

Oh yes, I'm stupid, I should have read the f... manual !! It was right-click 
on the "Class" tab, and the "New class" subitem in the contextual menu.
I'm new to DevC++ and I expected to find this feature in the main menu bar. 
Sorry.

Best regards,

A.R.

----- Original Message ----- 
From: "Thomas Witt" <wi...@we...>
To: "Adrien REBOISSON" <rab...@fr...>
Cc: <dev...@li...>
Sent: Thursday, November 18, 2004 10:37 AM
Subject: Re: [Dev-C++] Search for a kind of "Class Builder"


> Adrien REBOISSON wrote:
>> Hi all,
>>
>> First sorry for my bad English, I'm french.
> First sorry for my bad English, I'm German.
>
>> I discovered Dev-C++ and I wonder if it exists a kind of "class builder" 
>> which can help me to create HPP/CPP files quickly.
>
> I am pretty shure that the Dev-C++ class anager includes that feature. I 
> can't check this at the moment but it might be some right-click option 
> inside the class browser.
>
> -=#=-
> mfg, Thomas
>
> 

> I discovered Dev-C++ and I wonder if it exists a kind of "class builder" 
> which can help me to create HPP/CPP files quickly.

Try Jimmy Venema's ClassBuilder! It is pretty usable at 2.4. The development 
has been stalled for several months but the author says it is a temporary 
situation.

http://members.lycos.nl/JimmyVenema/ClassBuilder/ClassBuilder.htm

Szczepan Holyszewski 

Hazael Serrano wrote:

>I need to make a program using the parallel port but I don't know what is the function to handle the parallel port and in which library is it,  could anyone help me
>
>Hazael Serrano
>
>
>
>-------------------------------------------------------
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>_______________________________________________
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>
>  
>
Use CreateFile to open "\\lpt1\" , unless you need full control of  the 
pins.

HTH

Adrien REBOISSON wrote:
> Hi all,
> 
> First sorry for my bad English, I'm french.
First sorry for my bad English, I'm German.

> I discovered Dev-C++ and I wonder if it exists a kind of "class builder" 
> which can help me to create HPP/CPP files quickly.

I am pretty shure that the Dev-C++ class anager includes that feature. I can't 
check this at the moment but it might be some right-click option inside the 
class browser.

-=#=-
mfg, Thomas

I have developed a program on Linux and carried the source to Windows and while 
attempting to compile get an error message saying that one cannot use the -o 
with -c options. I am sure that this was covered previously but I cannot find 
it.

---

Regards,
Alf Stockton	www.stockton.co.za

Lie, n.:
 	A very poor substitute for the truth, but the only one
discovered to date.

[snip]
I need to make a program using the parallel port but I don't know what
is the function to handle the parallel port and in which library is it,
could anyone help me
[/snip]

http://www.google.com/search?hl=3Den&q=3DC+library+to+handle+parallel+por=
ts

I need to make a program using the parallel port but I don't know what =
is the function to handle the parallel port and in which library is it,  =
could anyone help me

Hazael Serrano

--=20
A diferen=E7a entre os homens comuns e os guerreiros =E9 que os guerreiros
encaram tudo como um desafio, enquanto os homens comuns encaram tudo
como uma ben=E7=E3o ou uma maldi=E7=E3o.

Hi all,

First sorry for my bad English, I'm french.

I discovered Dev-C++ and I wonder if it exists a kind of "class builder" 
which can help me to create HPP/CPP files quickly.

If not, can I extend the software (by a sort of "plugin", I mean) to include 
a such tool created by myself (I'm used to develop with Delphi) ? How ?

Thank you !

A.R. 

Hi,

I installed Dev-C++ 4.9.9.0 (full version) in Windows 98, SE and when
I use the WebUpdate Module it never installs the update.

For example:

I selected mirror "PlanetMirror.com"

next checked box for "Dev-C++ Update"

and click "Download Selected"

it downloads the file and the status changes to "disconncted"

then nothing happens!

i watched the download progress meter so it seemed to complete 

then the app just freezes, even if i click on "close" nothing happens

but if i do Ctrl-Alt-Del I see the process and it doesn't say "Not
responding" or
anything , and as soon as I cancel the Ctrl-Alt-Del a dialog box pops
up in Dev-C++ saying "The updates you selected have been downloaded.
They will now be installed"

so i click "OK" and nothing happens :(

if i close Dev-C++ and repeat the whole process i get same result

i recall using older version 1 year ago also in Windows 98 SE and
never had this problem.

help please :)

zach

Hey folks. I hear that xx has many flaws. Can anyone recommend an
alternative xx program?

Joke aside. Given the large number of applications developed using gdb, I
don't think you need to think of it as inadequate. Instead, just locate a
nice graphical front end for it. It definitely works.

I usually run gdb with gvd - The GNU Visual Debugger, but there are
several other good front ends available.

/Per W

On Sat, 13 Nov 2004, Rob Lawless wrote:

> hey folks I hear that the GDB debugger has many flaws
> can anyone recommend an alternative (good) c++ debugger?
> regards
> Rob

hey folks I hear that the GDB debugger has many flaws
can anyone recommend an alternative (good) c++ debugger?
regards
Rob

kha...@ya...


		
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