dev-cpp-users Mailing List for Dev-C++ (Page 2)

Hello,

Does anyone know how to create resource script files and  link these to source programs?  I created a Resource (.rc) file using WinAPI.  I then created a header file and my c-source code.  I put my header file, which contained definitions into the header region of my .rc file.  I also put the header file in my c-source code file.  Next, I pressed compile and tried to link all of it together.  However, I got an error, it said that the resource file could not be found. It opened up a separate file which actually contained no information at all. Can someone with experience usin the DEV C++ IDE teach me how to create a project with these component files?  
Thanks.  

dev...@li... wrote: Send Dev-cpp-users mailing list submissions to
 dev...@li...

To subscribe or unsubscribe via the World Wide Web, visit
 https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
or, via email, send a message with subject or body 'help' to
 dev...@li...

You can reach the person managing the list at
 dev...@li...

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Dev-cpp-users digest..."


Today's Topics:

   1. What is wrong (Jan Mura)
   2. Re: What is wrong (Per Westermark)
   3. Re: What is wrong (Jan Mura)
   4. Formula question (Philip Bennefall)
   5. Re: Formula question (Jonathan Winterflood)
   6. Re: Formula question (Per Westermark)
   7. Re: Formula question (Per Westermark)
   8. Linked list (Jan Mura)


----------------------------------------------------------------------

Message: 1
Date: Wed, 6 Jun 2007 19:08:24 +0200
From: "Jan Mura" 
Subject: [Dev-C++] What is wrong
To: 
Message-ID: <000701c7a85d$4c763a70$e6e218ac@TERASUS2>
Content-Type: text/plain; charset="iso-8859-2"

Hello,

I would like to ask what is wrong on the following:

...
int *i;
*i = 1;
printf ("%d", *i);

...

As I read in 
Brian W. Kernighan, Denis M. Ritchie it should work.

But anyway in my program it prints nothing.

If I delete the line 

*i = 1;

it works properly. 



I am on XP Professional with Dev-Cpp.



Thanks



Jan Mura

jan...@vo...




------------------------------

Message: 2
Date: Wed, 6 Jun 2007 19:13:43 +0200 (CEST)
From: Per Westermark 

Subject: Re: [Dev-C++] What is wrong
To: Jan Mura 
Cc: dev...@li...
Message-ID: 

Content-Type: TEXT/PLAIN; charset=US-ASCII

i is a pointer, i'e an address to a separate memory for storing the
integer value.

You must first assign an address to i, before you may assign an integer to
the memory area pointed to by i.

int main() {
    int *i;
    i = (int*)malloc(sizeof(int));
    *i = 1;
    printf("%d\n",*i);
    free(i); // release the memory allocated with the malloc() call.
    return 0;
}

/pwm

On Wed, 6 Jun 2007, Jan Mura wrote:

> Hello,
>
> I would like to ask what is wrong on the following:
>
> ...
> int *i;
> *i = 1;
> printf ("%d", *i);
>
> ...
>
> As I read in
> Brian W. Kernighan, Denis M. Ritchie it should work.
>
> But anyway in my program it prints nothing.
>
> If I delete the line
>
> *i = 1;
>
> it works properly.
>
>
>
> I am on XP Professional with Dev-Cpp.
>
>
>
> Thanks
>
>
>
> Jan Mura
>
> jan...@vo...
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>




------------------------------

Message: 3
Date: Thu, 7 Jun 2007 08:39:45 +0200
From: "Jan Mura" 
Subject: Re: [Dev-C++] What is wrong
To: 
Message-ID: <001401c7a8ce$a48a12b0$720c18ac@TERASUS2>
Content-Type: text/plain; charset="iso-8859-2"

    Well, of course. Maybe I am a little bit out of order because of dealing
with C and its pointers now quite intensively.

Thank you anyway

Jan Mura
----- Original Message ----- 
From: "Per Westermark" 

To: "Jan Mura" 
Cc: 
Sent: Wednesday, June 06, 2007 7:13 PM
Subject: Re: [Dev-C++] What is wrong


> i is a pointer, i'e an address to a separate memory for storing the
> integer value.
>
> You must first assign an address to i, before you may assign an integer to
> the memory area pointed to by i.
>
> int main() {
>     int *i;
>     i = (int*)malloc(sizeof(int));
>     *i = 1;
>     printf("%d\n",*i);
>     free(i); // release the memory allocated with the malloc() call.
>     return 0;
> }
>
> /pwm
>
> On Wed, 6 Jun 2007, Jan Mura wrote:
>
> > Hello,
> >
> > I would like to ask what is wrong on the following:
> >
> > ...
> > int *i;
> > *i = 1;
> > printf ("%d", *i);
> >
> > ...
> >
> > As I read in
> > Brian W. Kernighan, Denis M. Ritchie it should work.
> >
> > But anyway in my program it prints nothing.
> >
> > If I delete the line
> >
> > *i = 1;
> >
> > it works properly.
> >
> >
> >
> > I am on XP Professional with Dev-Cpp.
> >
> >
> >
> > Thanks
> >
> >
> >
> > Jan Mura
> >
> > jan...@vo...
> >
> >
>
> -------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2 express and take
> > control of your XML. No limits. Just data. Click to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > 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
> >
>
>
>
> __________ Informace od NOD32 2313 (20070606) __________
>
> Tato zprava byla proverena antivirovym systemem NOD32.
> http://www.nod32.cz
>
>




------------------------------

Message: 4
Date: Thu, 7 Jun 2007 18:03:30 +0200
From: "Philip Bennefall" 

Subject: [Dev-C++] Formula question
To: 
Message-ID: <008b01c7a91d$64efc790$4800a8c0@Pbgames>
Content-Type: text/plain; charset="iso-8859-1"

Hi,
Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
and unsigned version of the data type respectively.

Thanks in advance.

Regards
Philip Bennefall
-------------- next part --------------
An HTML attachment was scrubbed...

------------------------------

Message: 5
Date: Thu, 7 Jun 2007 18:55:32 +0200
From: "Jonathan Winterflood" 
Subject: Re: [Dev-C++] Formula question
To: "Philip Bennefall" 

Cc: dev...@li...
Message-ID:
 
Content-Type: text/plain; charset="iso-8859-1"

On 6/7/07, Philip Bennefall 
 wrote:
>
> Hi,
> Could anyone tell me the formula which is used to calculate the min and
> max values for a numerical data type of x bytes? Say for instance that I use
> the
> sizeof(datatype) function and get the answer 4, which is usually an
> integer, how do I then programatically calculate the min and max values for
> a signed
> and unsigned version of the data type respectively.
> Thanks in advance.
> Regards
> Philip Bennefall
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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,

Usually there are constants defined for this use, which might be more
useful.

However, this is how to calculate the values, supposing the encoding for
negative number is 2's complement (machines that don't use this are rather
rare, I believe, and won't be running windows...)
Also supposing your data type is some kind of binary integer (floats and
double are encoded differently)
nb_bytes = sizeof(...)
nb_bits = 8*nb_bytes
max_unsigned = 2^nb_bits - 1
min_unsigned = 0 //no kidding !
max_signed = 2^(nb_bits-1) - 1
min_unsigned = -( 2^(nb_bits-1) )

Jonathan

-- 
 linux, c'est une question de VI ou de MORE
-------------- next part --------------
An HTML attachment was scrubbed...

------------------------------

Message: 6
Date: Thu, 7 Jun 2007 19:09:10 +0200 (CEST)
From: Per Westermark 

Subject: Re: [Dev-C++] Formula question
To: Philip Bennefall 

Cc: dev...@li...
Message-ID:
 

Content-Type: TEXT/PLAIN; charset=US-ASCII

There are no formula for that.

This is the normal way of doing it in C (available in the standard
header files)
#define MAX(a,b)  ((a) >= (b) ? (a) : (b))
#define MIN(a,b)  ((a) <= (b) ? (a) : (b))

Note that the above two constructs have problems if the parameters have
side effects, i.e. for something like:

max = MAX(*a++,*b--);

For c++, there is a algorithm std::max() available in the standard
template library.

/pwm

On Thu, 7 Jun 2007, Philip Bennefall wrote:

> Hi,
> Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
> sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
> and unsigned version of the data type respectively.
>
> Thanks in advance.
>
> Regards
> Philip Bennefall




------------------------------

Message: 7
Date: Thu, 7 Jun 2007 19:10:58 +0200 (CEST)
From: Per Westermark 

Subject: Re: [Dev-C++] Formula question
To: Philip Bennefall 

Cc: dev...@li...
Message-ID:
 

Content-Type: TEXT/PLAIN; charset=US-ASCII

Oops, missed the meaning of your question.

Look at the file 
 - it contains a lot of defines for numeric
ranges for different data types (char, short, int, long, ...)

/pwm

On Thu, 7 Jun 2007, Philip Bennefall wrote:

> Hi,
> Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
> sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
> and unsigned version of the data type respectively.
>
> Thanks in advance.
>
> Regards
> Philip Bennefall




------------------------------

Message: 8
Date: Fri, 8 Jun 2007 16:46:05 +0200
From: "Jan Mura" 
Subject: [Dev-C++] Linked list
To: 
Message-ID: <000601c7a9db$bff90b10$8ce118ac@TERASUS2>
Content-Type: text/plain; charset="iso-8859-2"

Hello,

I would like to ask about some things in linked list  I
try to write.
It looks like:

struct s 
{
int id;
char *name;
struct s *next;
}; 

int main ()
{
struct s *front = NULL; /*the front of a list */
int i = 1;
char *name;

while (1)
{
gets (name);
if (strlen(name) == 0)  break;
in_list (&front, i, name);
i++;
}
return 0;
}

void in_list (struct  s **q, int in_id, const char *in_name)
{
struct s*member, *temp;

member = malloc (sizeof (struct s));
member -> name = malloc (strlen (in_name) +1);

member-> id = in_id;
strcpy (member -> name, in_name);
member -> next = NULL; /* it will be the last member in the list */

if (q == NULL) /* empty list */
{
q = member;
q -> next = NULL;
}
else
{
temp = q;
temp -> next = q -> next;

while (temp -> next != NULL)
temp = temp -> next; /* looking for the last member in the list */

temp ->next = member; /* the last member is no more the last one */
}
}

Should I allocate the space for temp and temp -> next when I am
putting an adress from member to temp?

So should it looks like:

temp = malloc ...;
temp = member;
???

Thanks for your answer.

Jan Mura 
jan...@vo...



------------------------------

-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/

------------------------------

_______________________________________________
Dev-cpp-users mailing list
Dev...@li...
TO UNSUBSCRIBE: http://www.noicys.cjb.net/devcpp/ub.htm
https://lists.sourceforge.net/lists/listinfo/dev-cpp-users


End of Dev-cpp-users Digest, Vol 13, Issue 2
********************************************

Thank you very much. Now I need to
accept all of the hints and suggestions and correction :-)
But they are very useful I have to say.

Jan Mura
jan...@vo...

No need for any extra allocation.

You are making an extra assign:

temp = q;
temp -> next = q -> next;

Note that after the first assign, temp and q will have the same value,
i.e. point to the same memory. temp->next and q->next is not two different
fields. It's the same memory, so the second assign is about as useful as
writing:

foo = foo;

A little trick when working with single-lined lists:

Don't make the last element in the list have a next = NULL;

Don't keep track of the list with a pointer front.

Instead make the list circular, and keep track of the list with a pointer
named last or tail.

Note that if the list is empty, last will be NULL.

If the list is not empty, last->next will point to the first entry in the
list.

This way, you will be able to access both the first and the last element
in the list in constant time. You will also be able to insert new elements
either first or last, without the need to loop through the list.

/pwm

On Fri, 8 Jun 2007, Jan Mura wrote:

> Hello,
>
> I would like to ask about some things in linked list  I
> try to write.
> It looks like:
>
> struct s
> {
> int id;
> char *name;
> struct s *next;
> };
>
> int main ()
> {
> struct s *front = NULL; /*the front of a list */
> int i = 1;
> char *name;
>
> while (1)
> {
> gets (name);
> if (strlen(name) == 0)  break;
> in_list (&front, i, name);
> i++;
> }
> return 0;
> }
>
> void in_list (struct  s **q, int in_id, const char *in_name)
> {
> struct s*member, *temp;
>
> member = malloc (sizeof (struct s));
> member -> name = malloc (strlen (in_name) +1);
>
> member-> id = in_id;
> strcpy (member -> name, in_name);
> member -> next = NULL; /* it will be the last member in the list */
>
> if (q == NULL) /* empty list */
> {
> q = member;
> q -> next = NULL;
> }
> else
> {
> temp = q;
> temp -> next = q -> next;
>
> while (temp -> next != NULL)
> temp = temp -> next; /* looking for the last member in the list */
>
> temp ->next = member; /* the last member is no more the last one */
> }
> }
>
> Should I allocate the space for temp and temp -> next when I am
> putting an adress from member to temp?
>
> So should it looks like:
>
> temp = malloc ...;
> temp = member;
> ???
>
> Thanks for your answer.
>
> Jan Mura
> jan...@vo...
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>

On 6/8/07, Jan Mura <jan...@vo...> wrote:
>
> Hello,
>
> I would like to ask about some things in linked list  I
> try to write.
> It looks like:
>
> struct s
> {
> int id;
> char *name;
> struct s *next;
> };
>
> int main ()
> {
> struct s *front = NULL; /*the front of a list */
> int i = 1;
> char *name;
>
> while (1)
> {
> gets (name);
> if (strlen(name) == 0)  break;
> in_list (&front, i, name);
> i++;
> }
> return 0;
> }
>
> void in_list (struct  s **q, int in_id, const char *in_name)
> {
> struct s*member, *temp;
>
> member = malloc (sizeof (struct s));
> member -> name = malloc (strlen (in_name) +1);
>
> member-> id = in_id;
> strcpy (member -> name, in_name);
> member -> next = NULL; /* it will be the last member in the list */
>
> if (q == NULL) /* empty list */
> {
> q = member;
> q -> next = NULL;
> }
> else
> {
> temp = q;
> temp -> next = q -> next;
>
> while (temp -> next != NULL)
> temp = temp -> next; /* looking for the last member in the list */
>
> temp ->next = member; /* the last member is no more the last one */
> }
> }
>
> Should I allocate the space for temp and temp -> next when I am
> putting an adress from member to temp?
>
> So should it looks like:
>
> temp = malloc ...;
> temp = member;
> ???
>
> Thanks for your answer.
>
> Jan Mura
> jan...@vo...
>



> Should I allocate the space for temp and temp -> next when I am
> putting an adress from member to temp?
No, you shouldn't: /temp/ is a local variable that points to something, when
you declare /temp/ thus : /struct * temp;/ you are already getting local
space to store the pointer, just as if you were declaring an integer
(pointers _are_ integers, actually)
Your suggestion would allocate some memory, and then immediately lose the
pointer to it, losing the memory without even using it.

Also, there are a couple of small errors in your code that show:
/struct **q/ points to the pointer to the first member, therefore you should
use / *q/ instead of /q/ to access the pointer to the first member
(basically all your uses of /q/)

When you say / *q->next = NULL;/, *q is == member, so / *q->next/ is already
NULL
Same thing here: /temp -> next = *q -> next;/ :temp and *q point to the same
structure, so there's no use doing that


Plus, just some hints, if I may:
you can avoid using /struct s/ everywhere like this:
typedef struct list_element_struct {
  int id;
  char *name;
  struct list_element_struct *next; //you still need struct here becuse the
typedef isn't done yet
} list_element;
and then use /list_element/ instead

you might want to write some helper functions such as these:
list_element *new_list_element(int id,char*name) // mallocs the element and
sets the name
void free_list_element(list_element *elem) //frees the name and element
void list_append(list_element **list, list_element *elem) // does the
appending part (the rest of your in_list)

Of course, you can do whatever you want :-D

Hope it helps :)
Jonathan
-- 
<Morpheus> linux, c'est une question de VI ou de MORE

Hello,

I would like to ask about some things in linked list  I
try to write.
It looks like:

struct s 
{
int id;
char *name;
struct s *next;
}; 

int main ()
{
struct s *front = NULL; /*the front of a list */
int i = 1;
char *name;

while (1)
{
gets (name);
if (strlen(name) == 0)  break;
in_list (&front, i, name);
i++;
}
return 0;
}

void in_list (struct  s **q, int in_id, const char *in_name)
{
struct s*member, *temp;

member = malloc (sizeof (struct s));
member -> name = malloc (strlen (in_name) +1);

member-> id = in_id;
strcpy (member -> name, in_name);
member -> next = NULL; /* it will be the last member in the list */

if (q == NULL) /* empty list */
{
q = member;
q -> next = NULL;
}
else
{
temp = q;
temp -> next = q -> next;

while (temp -> next != NULL)
temp = temp -> next; /* looking for the last member in the list */

temp ->next = member; /* the last member is no more the last one */
}
}

Should I allocate the space for temp and temp -> next when I am
putting an adress from member to temp?

So should it looks like:

temp = malloc ...;
temp = member;
???

Thanks for your answer.

Jan Mura 
jan...@vo...

Oops, missed the meaning of your question.

Look at the file <limits.h> - it contains a lot of defines for numeric
ranges for different data types (char, short, int, long, ...)

/pwm

On Thu, 7 Jun 2007, Philip Bennefall wrote:

> Hi,
> Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
> sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
> and unsigned version of the data type respectively.
>
> Thanks in advance.
>
> Regards
> Philip Bennefall

There are no formula for that.

This is the normal way of doing it in C (available in the standard
header files)
#define MAX(a,b)  ((a) >= (b) ? (a) : (b))
#define MIN(a,b)  ((a) <= (b) ? (a) : (b))

Note that the above two constructs have problems if the parameters have
side effects, i.e. for something like:

max = MAX(*a++,*b--);

For c++, there is a algorithm std::max() available in the standard
template library.

/pwm

On Thu, 7 Jun 2007, Philip Bennefall wrote:

> Hi,
> Could anyone tell me the formula which is used to calculate the min and max values for a numerical data type of x bytes? Say for instance that I use the
> sizeof(datatype) function and get the answer 4, which is usually an integer, how do I then programatically calculate the min and max values for a signed
> and unsigned version of the data type respectively.
>
> Thanks in advance.
>
> Regards
> Philip Bennefall

On 6/7/07, Philip Bennefall <phi...@pb...> wrote:
>
> Hi,
> Could anyone tell me the formula which is used to calculate the min and
> max values for a numerical data type of x bytes? Say for instance that I use
> the
> sizeof(datatype) function and get the answer 4, which is usually an
> integer, how do I then programatically calculate the min and max values for
> a signed
> and unsigned version of the data type respectively.
> Thanks in advance.
> Regards
> Philip Bennefall
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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,

Usually there are constants defined for this use, which might be more
useful.

However, this is how to calculate the values, supposing the encoding for
negative number is 2's complement (machines that don't use this are rather
rare, I believe, and won't be running windows...)
Also supposing your data type is some kind of binary integer (floats and
double are encoded differently)
nb_bytes = sizeof(...)
nb_bits = 8*nb_bytes
max_unsigned = 2^nb_bits - 1
min_unsigned = 0 //no kidding !
max_signed = 2^(nb_bits-1) - 1
min_unsigned = -( 2^(nb_bits-1) )

Jonathan

-- 
<Morpheus> linux, c'est une question de VI ou de MORE

Hi,
Could anyone tell me the formula which is used to calculate the min and =
max values for a numerical data type of x bytes? Say for instance that I =
use the
sizeof(datatype) function and get the answer 4, which is usually an =
integer, how do I then programatically calculate the min and max values =
for a signed
and unsigned version of the data type respectively.

Thanks in advance.

Regards
Philip Bennefall

    Well, of course. Maybe I am a little bit out of order because of dealing
with C and its pointers now quite intensively.

Thank you anyway

Jan Mura
----- Original Message ----- 
From: "Per Westermark" <pw...@ia...>
To: "Jan Mura" <jan...@vo...>
Cc: <dev...@li...>
Sent: Wednesday, June 06, 2007 7:13 PM
Subject: Re: [Dev-C++] What is wrong


> i is a pointer, i'e an address to a separate memory for storing the
> integer value.
>
> You must first assign an address to i, before you may assign an integer to
> the memory area pointed to by i.
>
> int main() {
>     int *i;
>     i = (int*)malloc(sizeof(int));
>     *i = 1;
>     printf("%d\n",*i);
>     free(i); // release the memory allocated with the malloc() call.
>     return 0;
> }
>
> /pwm
>
> On Wed, 6 Jun 2007, Jan Mura wrote:
>
> > Hello,
> >
> > I would like to ask what is wrong on the following:
> >
> > ...
> > int *i;
> > *i = 1;
> > printf ("%d", *i);
> >
> > ...
> >
> > As I read in
> > Brian W. Kernighan, Denis M. Ritchie it should work.
> >
> > But anyway in my program it prints nothing.
> >
> > If I delete the line
> >
> > *i = 1;
> >
> > it works properly.
> >
> >
> >
> > I am on XP Professional with Dev-Cpp.
> >
> >
> >
> > Thanks
> >
> >
> >
> > Jan Mura
> >
> > jan...@vo...
> >
> >
>
> -------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2 express and take
> > control of your XML. No limits. Just data. Click to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > 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
> >
>
>
>
> __________ Informace od NOD32 2313 (20070606) __________
>
> Tato zprava byla proverena antivirovym systemem NOD32.
> http://www.nod32.cz
>
>

i is a pointer, i'e an address to a separate memory for storing the
integer value.

You must first assign an address to i, before you may assign an integer to
the memory area pointed to by i.

int main() {
    int *i;
    i = (int*)malloc(sizeof(int));
    *i = 1;
    printf("%d\n",*i);
    free(i); // release the memory allocated with the malloc() call.
    return 0;
}

/pwm

On Wed, 6 Jun 2007, Jan Mura wrote:

> Hello,
>
> I would like to ask what is wrong on the following:
>
> ...
> int *i;
> *i = 1;
> printf ("%d", *i);
>
> ...
>
> As I read in
> Brian W. Kernighan, Denis M. Ritchie it should work.
>
> But anyway in my program it prints nothing.
>
> If I delete the line
>
> *i = 1;
>
> it works properly.
>
>
>
> I am on XP Professional with Dev-Cpp.
>
>
>
> Thanks
>
>
>
> Jan Mura
>
> jan...@vo...
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>

Hello,

I would like to ask what is wrong on the following:

...
int *i;
*i = 1;
printf ("%d", *i);

...

As I read in 
Brian W. Kernighan, Denis M. Ritchie it should work.

But anyway in my program it prints nothing.

If I delete the line 

*i = 1;

it works properly. 



I am on XP Professional with Dev-Cpp.



Thanks



Jan Mura

jan...@vo...

Hi Everyone,
I need help regarding writing c++ application that either starts up 
when windows is  started or runs at the background whiles windows runs 
using the Dev-C++ ide.


dev...@li... wrote:  Send Dev-cpp-users mailing list submissions to
dev...@li...

To subscribe or unsubscribe via the World Wide Web, visit
https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
or, via email, send a message with subject or body 'help' to
dev...@li...

You can reach the person managing the list at
dev...@li...

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Dev-cpp-users digest..."


Today's Topics:

1. (no subject) (hhh hhh)
2. Re: (no subject) (Rory Walsh)
3. Re: (no subject) (Jonathan Winterflood)
4. Compile library - linking error (warbad celvinc)
5. Gettimeofday in dev-c++ (barreto)
6. Re: Gettimeofday in dev-c++ (Per Westermark)
7. Re: Dev-cpp-users Digest, Vol 12, Issue 11 (MOHAMMED SEIDU)


----------------------------------------------------------------------

Message: 1
Date: Sun, 27 May 2007 10:56:05 +0000
From: "hhh hhh" 
Subject: [Dev-C++] (no subject)
To: dev...@li...
Message-ID: 
Content-Type: text/plain; charset=iso-8859-1; format=flowed


Estimeed dev...@li... :

Hi people... I was hoping that you could point me some guidance. I want to 
write a little app that captures images and video from my web cam, but i 
can't seem to find any useful sources, as they are all strangely written, 
like private use code.
So, if u please could help me out, I would be very much appreciated

_________________________________________________________________
Fazer um telefonema para o PC de um amigo n?o custa nada. ? gr?tis! 
http://get.live.com/pt-pt/messenger/overview




------------------------------

Message: 2
Date: Sun, 27 May 2007 18:08:33 +0100
From: Rory Walsh 
Subject: Re: [Dev-C++] (no subject)
To: hhh hhh 
Cc: dev...@li...
Message-ID: <465...@ea...>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

I have done this using the windows API but it was a long time ago and 
that code is long gone. Try doing a search for 'Video Capture Functions 
win32' in google and you should find plenty of useful info. You could 
also try using directx which also has certain functions to capturing 
video. Best of luck with it.

Rory.

hhh hhh wrote:
> Estimeed dev...@li... :
> 
> Hi people... I was hoping that you could point me some guidance. I want to 
> write a little app that captures images and video from my web cam, but i 
> can't seem to find any useful sources, as they are all strangely written, 
> like private use code.
> So, if u please could help me out, I would be very much appreciated
> 
> _________________________________________________________________
> Fazer um telefonema para o PC de um amigo n?o custa nada. ? gr?tis! 
> http://get.live.com/pt-pt/messenger/overview
> 
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
> 



------------------------------

Message: 3
Date: Sun, 27 May 2007 19:22:16 +0200
From: "Jonathan Winterflood" 
Subject: Re: [Dev-C++] (no subject)
To: "Rory Walsh" 
Cc: dev...@li..., hhh hhh

Message-ID:

Content-Type: text/plain; charset="iso-8859-1"

You could try looking into the Virtualdub capture mode code: it supports
windows' video capture interface.

http://www.virtualdub.org

Jonathan

On 5/27/07, Rory Walsh wrote:
>
> I have done this using the windows API but it was a long time ago and
> that code is long gone. Try doing a search for 'Video Capture Functions
> win32' in google and you should find plenty of useful info. You could
> also try using directx which also has certain functions to capturing
> video. Best of luck with it.
>
> Rory.
>
> hhh hhh wrote:
> > Estimeed dev...@li... :
> >
> > Hi people... I was hoping that you could point me some guidance. I
> want to
> > write a little app that captures images and video from my web cam, but i
> > can't seem to find any useful sources, as they are all strangely
> written,
> > like private use code.
> > So, if u please could help me out, I would be very much appreciated
> >
> > _________________________________________________________________
> > Fazer um telefonema para o PC de um amigo n?o custa nada. ? gr?tis!
> > http://get.live.com/pt-pt/messenger/overview
> >
> >
> >
> -------------------------------------------------------------------------
> > This SF.net email is sponsored by DB2 Express
> > Download DB2 Express C - the FREE version of DB2 express and take
> > control of your XML. No limits. Just data. Click to get it now.
> > http://sourceforge.net/powerbar/db2/
> > _______________________________________________
> > 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
> >
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>



-- 
linux, c'est une question de VI ou de MORE
-------------- next part --------------
An HTML attachment was scrubbed...

------------------------------

Message: 4
Date: Tue, 29 May 2007 22:24:26 +0000 (GMT)
From: warbad celvinc 
Subject: [Dev-C++] Compile library - linking error
To: dev...@li...
Message-ID: <470...@we...>
Content-Type: text/plain; charset=ascii

Hello all,

I'm currently trying to compile a library from my own, with actually only one function which call a system call (the rest of the files are not shown here): 

DLLIMPORT void DumpNetConnection (void)
{
LPHANDLE net; 

WnetOpenEnum(RESOURCE_CONNECTED,
RESOURCETYPE_ANY,
0,
NULL,
net);
return;
}

However, i have the follwing error at compile time : 

dllwrap.exe --output-def libMyLib.def --implib libMyLib.a dllmain.o -L"C:/Dev-Cpp/lib" --no-export-all-symbols --add-stdcall-alias C:/Dev-Cpp/lib/libmpr.a -g3 -o MyLib.dll
dllmain.o(.text+0x2d): In function `DumpNetConnection':
D:/sources/MyLib/dllmain.c:13: undefined reference to `WnetOpenEnum'


What goes wrong ? I linked to the correct library in project parameter.

Thank's for any help. 




_____________________________________________________________________________ 
Ne gardez plus qu'une seule adresse mail ! Copiez vos mails vers Yahoo! Mail 



------------------------------

Message: 5
Date: Wed, 30 May 2007 17:52:44 -0300
From: "barreto" 
Subject: [Dev-C++] Gettimeofday in dev-c++
To: 
Message-ID: <00aa01c7a2fc$788c08d0$17040a0a@LAPDELL>
Content-Type: text/plain; charset="iso-8859-1"


Hi all.

Is there any example of how to use gettimeofday() similar functions to
manage time in Dev-C++?

Thanks.
|---------------------------------------|
| Prof. Marcos Ennes Barreto
| Coordenador - Computa??o
| Centro Universit?rio La Salle
| www.inf.unilasalle.edu.br/~barreto
| barreto at unilasalle dot edu dot br
|---------------------------------------|

No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.472 / Virus Database: 269.8.3/824 - Release Date: 29/5/2007
13:01





------------------------------

Message: 6
Date: Thu, 31 May 2007 00:16:35 +0200 (CEST)
From: Per Westermark 

Subject: Re: [Dev-C++] Gettimeofday in dev-c++
To: barreto 
Cc: dev...@li...
Message-ID:


Content-Type: TEXT/PLAIN; charset=ISO-8859-1

Check out the gnu documentation. It contains all information needed to use
the GNU-based runtime library.

You can also check out the documentation available on the MinGW site.

Or you can just google gettimeofday() - it's a standard function, so you
will get a lot of good hits.

/pwm

On Wed, 30 May 2007, barreto wrote:

>
> Hi all.
>
> Is there any example of how to use gettimeofday() similar functions to
> manage time in Dev-C++?
>
> Thanks.
> |---------------------------------------|
> | Prof. Marcos Ennes Barreto
> | Coordenador - Computa??o
> | Centro Universit?rio La Salle
> | www.inf.unilasalle.edu.br/~barreto
> | barreto at unilasalle dot edu dot br
> |---------------------------------------|
>
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.5.472 / Virus Database: 269.8.3/824 - Release Date: 29/5/2007
> 13:01
>
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>




------------------------------

Message: 7
Date: Thu, 31 May 2007 05:51:31 -0700 (PDT)
From: MOHAMMED SEIDU 
Subject: Re: [Dev-C++] Dev-cpp-users Digest, Vol 12, Issue 11
To: dev...@li...
Message-ID: <215...@we...>
Content-Type: text/plain; charset="iso-8859-1"

Hi Everyone,
I need help regarding writing c++ application that either starts up when windows is started or runs at the background whiles windows runs using the Dev-C++ ide.

dev...@li... wrote:Send Dev-cpp-users mailing list submissions to
dev...@li...

To subscribe or unsubscribe via the World Wide Web, visit
https://lists.sourceforge.ncet/lists/listinfo/dev-cpp-users
or, via email, send a message with subject or body 'help' to
dev...@li...

You can reach the person managing the list at
dev...@li...

When replying, please edit your Subject line so it is more specific
than "Re: Contents of Dev-cpp-users digest..."


Today's Topics:

1. Re: Dev-cpp-users Digest, Vol 12, Issue 9 (Luis Alfonso Giraldo)
2. Re: Dev-cpp-users Digest, Vol 12, Issue 9 (Per Westermark)
3. memory leak! (Lloyd)
4. Re: memory leak! (Jonathan Winterflood)
5. Re: memory leak! (Lloyd)
6. Re: memory leak! (Per Westermark)


----------------------------------------------------------------------

Message: 1
Date: Wed, 23 May 2007 23:21:37 -0500
From: "Luis Alfonso Giraldo" 
Subject: Re: [Dev-C++] Dev-cpp-users Digest, Vol 12, Issue 9
To: 
Message-ID: <200...@sm...>
Content-Type: text/plain; charset="iso-8859-1"

Hi,


Please, I need code of sparse Matriz in C++:
M?thods:
1. MakeDisperseMatrix(nF, nC): Matriz Dispersa vac?a
2. isEmpty(DisperseMatrix): Decide si la Matriz Dispersa est? vac?a
3. getNumberOfRows(DisperseMatrix): Indica el n?mero de filas de la Matriz
Dispersa
4. getNumberOfColumns(DisperseMatrix): Indica el n?mero de columnas de la
Matriz Dispersa
5. getNumberOfElements(DisperseMatrix): Indica el n?mero de elementos
existentes en la Matriz Dispersa
6. printMatrix(DisperseMatrix): Imprime la matriz por filas
7. printMatrizInFile(DisperseMatrix, File): Imprime la matriz en un archivo
(Guardar)
8. getRowOfInsertion(DisperseMatrix, nF, nC): Retorna una referencia a los
predecesores en la fila a insertar.
9. makeNode(object, nF, nC): Crea un nodo.
10. getColumnOfInsertion(DisperseMatrix, nF, nC): Retorna una referencia a
los predecesores en la columna a insertar.
11. InsertInMatriz(DisperseMatrix, nF, nC, object): Inserta "object" en la
fila y columna indicada.
12. getValuePosition(DisperseMatrix, nF, nC): Retorna el valor almacenado en
la fila y columna indicado. Si no existe devuelve 0.
13. getPorcentUsed(DisperseMatrix): Indica el porcentaje de elementos
almacenados.
14. getMaxElements(DisperseMatrix): Indica el n?mero m?ximo de elementos que
pueden ser almacenados en la matriz.
15. addDisperseMatrix(DisperseMatrix1, DisperseMatrix2): Devuelve en
DisperseMatrix1 el resultado de sumar las dos matrices.
16. scaleDisperseMatrix(DisperseMatrix, valor): Retorna la matriz resultante
de multiplicar cada posici?n existente por valor.
17. multDisperseMatrix (DisperseMatrix1,DisperseMatrix2, DisperseMatrix3):
Retorna en DisperseMatrix3 el resultante de multiplicar las matrices
DisperseMatrix1 y DisperseMatrix2(en ese orden).

Thanks and excuse me :(

Luis Alfonso
Colombia




------------------------------

Message: 2
Date: Thu, 24 May 2007 07:34:19 +0200 (CEST)
From: Per Westermark 

Subject: Re: [Dev-C++] Dev-cpp-users Digest, Vol 12, Issue 9
To: Luis Alfonso Giraldo 
Cc: dev...@li...
Message-ID: 

Content-Type: TEXT/PLAIN; charset=ISO-8859-1

Is this part of a school work?

If your list is part of an existing library, Google should find the code.
If it is part of a school assignment, you better start coding.

/pwm

On Wed, 23 May 2007, Luis Alfonso Giraldo wrote:

> Hi,
>
>
> Please, I need code of sparse Matriz in C++:
> M?thods:
> 1. MakeDisperseMatrix(nF, nC): Matriz Dispersa vac?a
> 2. isEmpty(DisperseMatrix): Decide si la Matriz Dispersa est? vac?a
> 3. getNumberOfRows(DisperseMatrix): Indica el n?mero de filas de la Matriz
> Dispersa
> 4. getNumberOfColumns(DisperseMatrix): Indica el n?mero de columnas de la
> Matriz Dispersa
> 5. getNumberOfElements(DisperseMatrix): Indica el n?mero de elementos
> existentes en la Matriz Dispersa
> 6. printMatrix(DisperseMatrix): Imprime la matriz por filas
> 7. printMatrizInFile(DisperseMatrix, File): Imprime la matriz en un archivo
> (Guardar)
> 8. getRowOfInsertion(DisperseMatrix, nF, nC): Retorna una referencia a los
> predecesores en la fila a insertar.
> 9. makeNode(object, nF, nC): Crea un nodo.
> 10. getColumnOfInsertion(DisperseMatrix, nF, nC): Retorna una referencia a
> los predecesores en la columna a insertar.
> 11. InsertInMatriz(DisperseMatrix, nF, nC, object): Inserta "object" en la
> fila y columna indicada.
> 12. getValuePosition(DisperseMatrix, nF, nC): Retorna el valor almacenado en
> la fila y columna indicado. Si no existe devuelve 0.
> 13. getPorcentUsed(DisperseMatrix): Indica el porcentaje de elementos
> almacenados.
> 14. getMaxElements(DisperseMatrix): Indica el n?mero m?ximo de elementos que
> pueden ser almacenados en la matriz.
> 15. addDisperseMatrix(DisperseMatrix1, DisperseMatrix2): Devuelve en
> DisperseMatrix1 el resultado de sumar las dos matrices.
> 16. scaleDisperseMatrix(DisperseMatrix, valor): Retorna la matriz resultante
> de multiplicar cada posici?n existente por valor.
> 17. multDisperseMatrix (DisperseMatrix1,DisperseMatrix2, DisperseMatrix3):
> Retorna en DisperseMatrix3 el resultante de multiplicar las matrices
> DisperseMatrix1 y DisperseMatrix2(en ese orden).
>
> Thanks and excuse me :(
>
> Luis Alfonso
> Colombia
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>




------------------------------

Message: 3
Date: Thu, 24 May 2007 11:24:16 +0530
From: Lloyd 
Subject: [Dev-C++] memory leak!
To: dev...@li...
Message-ID: <1179986056.9291.6.camel@RCCF025>
Content-Type: text/plain

Hi,
I have written a program in Linux.
It opens a file and maps it to memory using mmap and unmaps and closes
the file. I am using a custom written data structure as well in the
program. There is no leak associated with the data structure. But some
ware a big leak is present. (I dont know where) I assume it could be
with mmap and munmap... Because as I open more and more files, the leak
gradually increases to megabytes! but for each mam,p the munmap is
called correspondingly. And the range which I give to unmap is correct.

Where could be the source of problem? Even after the program exit the
memory consumption remains same (not reducted to the program startup
state). I see this with the aid of system monitoring tool..

please help me...

Thanks and Regards,
Lloyd




______________________________________
Scanned and protected by Email scanner



------------------------------

Message: 4
Date: Fri, 25 May 2007 08:28:29 +0200
From: "Jonathan Winterflood" 
Subject: Re: [Dev-C++] memory leak!
To: ll...@cd...
Cc: dev...@li...
Message-ID:

Content-Type: text/plain; charset="iso-8859-1"

Hi,

Maybe you should use valgrind to test your program for leaks (compiling with
debugging symbols should help you get a digestable log)

Jonathan

On 5/24/07, Lloyd wrote:
>
> Hi,
> I have written a program in Linux.
> It opens a file and maps it to memory using mmap and unmaps and closes
> the file. I am using a custom written data structure as well in the
> program. There is no leak associated with the data structure. But some
> ware a big leak is present. (I dont know where) I assume it could be
> with mmap and munmap... Because as I open more and more files, the leak
> gradually increases to megabytes! but for each mam,p the munmap is
> called correspondingly. And the range which I give to unmap is correct.
>
> Where could be the source of problem? Even after the program exit the
> memory consumption remains same (not reducted to the program startup
> state). I see this with the aid of system monitoring tool..
>
> please help me...
>
> Thanks and Regards,
> Lloyd
>
>
>
>
> ______________________________________
> Scanned and protected by Email scanner
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>



-- 
linux, c'est une question de VI ou de MORE
-------------- next part --------------
An HTML attachment was scrubbed...

------------------------------

Message: 5
Date: Fri, 25 May 2007 12:27:15 +0530
From: Lloyd 
Subject: Re: [Dev-C++] memory leak!
To: dev...@li...
Message-ID: <1180076235.12168.5.camel@RCCF025>
Content-Type: text/plain

Thank you Jonathan. I tried using valgrind, but my program uses
wxWidgets (a GUI library). The out put of valgrind is unreadable and not
understandable for me :(

It shows lots of lines as output

When I executed my program more and more, at the first stages (first few

=== message truncated ===

  
---------------------------------
Looking for earth-friendly autos? 
 Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center.  

... I searched the dev-cpp install directory, but I did not find =
anything.

Thanks for hints, Bernd

--=20
Bernd M=FCnt                   Durchwahl: 030/69032-509
euroscript Deutschland GmbH  Zentrale:  030/69032-300
Abteilung IT-Management      Fax:       030/69032-505
Alt-Moabit 91                Mail:      Ber...@eu...
10559 Berlin                 Web:       http://www.euroscript.de

Don't try to write functions that return arrays.

Note that in C/C++, a pointer and an array is alsmost the same thing from
a language perspective. The array name is always returned as a pointer to
the first element in the array...

Exactly what problem are you trying to solve?

Let the function return a pointer to a string, and let the receiver accept
this string. Why do you care about an array size?

/pwm

On Mon, 4 Jun 2007 fa...@un... wrote:

> --===============0082291564==
> Content-Type: text/plain;
> Content-Transfer-Encoding: quoted-printable
>
> Hi, everyone,=20
> I have a problem with a string of char function. I have define a typedef =
> char cad[80], and i want a function that return a char[80] type, because =
> in dev-c++ is not posible return this type a write the function to return=
>  a pointer to char[80], in de form *cad. But, i don't get the function re=
> turn the desired cad, the compiler always tell me a mismatch in the type =
> to return, and the type i work. In linux-unix compiler CPP i don=B4t have=
>  problems, but in the windows dev-c++ version ever i had a error, or a mo=
> s match.
>
> I agree your sugestions.
>
> --------------------------------------
> MENSAJE ENVIADO CON WMAIL 1.01
> UNIVERSIDAD DEL CAUCA
>
>
>
>
> --===============0082291564==
> Content-Type: text/plain; charset="us-ascii"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Content-Disposition: inline
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> --===============0082291564==
> Content-Type: text/plain; charset="us-ascii"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Content-Disposition: inline
>
> _______________________________________________
> 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
>
> --===============0082291564==--
>

Hi, everyone, 
I have a problem with a string of char function. I have define a typedef char cad[80], and i want a function that return a char[80] type, because in dev-c++ is not posible return this type a write the function to return a pointer to char[80], in de form *cad. But, i don't get the function return the desired cad, the compiler always tell me a mismatch in the type to return, and the type i work. In linux-unix compiler CPP i don´t have problems, but in the windows dev-c++ version ever i had a error, or a mos match.

I agree your sugestions.

--------------------------------------
MENSAJE ENVIADO CON WMAIL 1.01
UNIVERSIDAD DEL CAUCA

There are no temp pointer to free. The pointers are not allocated
dynamically, so need not to be released. It's the contents that the
pointer points to, that needs to be released.

Your print is wrong.

It should be *a to write the integer value that a points to.

/pwm

On Fri, 1 Jun 2007, Jan Mura wrote:

> Hello,
>
> I would like to ask and clear the problem of freeing a memory previously
> allocated.
> I have got a program and this a simple example of something similar:
>
> #include<stdlib.h>
> #include<stdio.h>
>
> void chng (int **in_a)
> {
> int *temp;
>
> temp = malloc(sizeof(int));
> *temp = 1;
> *in_a = temp;
>
> }
>
> int main()
> {
> int *a;
>
> chng(&a);
>
> printf ("a = %d\n", a);
> free (a);
>
> return 0;
> }
>
> And I would like to know if this free (a);
> at the end of main() frees also a temp pointer which is used in chng()
> function.
> It should to do this because it adress the same part of memory if I
> understand it correctly.
>
> If you notice any other problem with the thing above, plese tell me.
>
> Thank you very much
>
> Jan Mura
> jan...@vo...
>
>
>
> -------------------------------------------------------------------------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> 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
>

Hello,

I would like to ask and clear the problem of freeing a memory previously
allocated.
I have got a program and this a simple example of something similar:

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

void chng (int **in_a)
{
int *temp;

temp = malloc(sizeof(int));
*temp = 1;
*in_a = temp;

}

int main()
{
int *a;

chng(&a);

printf ("a = %d\n", a);
free (a);

return 0;
}

And I would like to know if this free (a);
at the end of main() frees also a temp pointer which is used in chng()
function.
It should to do this because it adress the same part of memory if I
understand it correctly.

If you notice any other problem with the thing above, plese tell me.

Thank you very much

Jan Mura
jan...@vo...