Hi ,all
I want to know the difference between char a[6] and char *p=new
char[6] and the difference between the heap and the stack ,and if the
char a[6] is corresponding to the stack in MEMORY,and char *p=new
char[6] is corresponding to the heap of MEMORY.
Give me some hint.
THANK YOU.
24  3620 
In article <87************ **************@ posting.google. com>, ww*******@mail2 .swjtu.edu.cn (wwj) wrote: Hi ,all
I want to know the difference between char a[6] and char *p=new
char[6] and the difference between the heap and the stack ,and if the
char a[6] is corresponding to the stack in MEMORY,and char *p=new
char[6] is corresponding to the heap of MEMORY.
Could you have a very very close look at the name of the newsgroup you
are posting to? Is the name of that newsgroup "comp.lang.c++" ? If not,
then you are posting your C++ questions to the wrong newsgroup.
wwj wrote: Hi ,all
I want to know the difference between char a[6] and char *p=new
char[6]
The difference is that the second statement has no meaning in C.
C++ is the second group down the hall, on the the left...
and the difference between the heap and the stack,
This has nothing to do with the C language.
and if the
char a[6] is corresponding to the stack in MEMORY,and char *p=new
char[6] is corresponding to the heap of MEMORY.
Since the C language has no notion of stack or heap, and since the
second statement has no meaning in C, we can't answer such a question.
Give me some hint.
first hint : C and C++ are two different languages. please post on the
appropriate newsgroup.
second hint :
#include <regulars_pleas e_correct_me_if _necessary.h>
C <ot>and C++</ot> have a notion of automatic memory and a notion of
dynamic memory.
Automatic memory is the default storage, and local variables are usually
automatic. This means that memory is automatically allocated for these
variable at the beginning of the block, and that this memory is
automatically freed at the end of the block.
Automatic memory *may* be, on *some* platforms, implemented with a stack.
Dynamic memory is memory that is allocated on demand, with a special
mechanism (in C, usually the 'malloc()' function, <ot>in C++ usually the
'new' operator</ot>), and that must be freed by code - usually in C with
the 'free()' function <ot>and in C++ with 'delete'</ot>). Not freeing
dynamically allocated memory (usually) causes a 'memory leak'.
Dynamic memory *may* be, on *some* platforms, implemented with a 'heap'.
Third hint : please learn the difference between C and C++, choose the
one you like, get yourself a *good* book on it, and post on the
appropriate group - after you've read the group's FAQ.
THANK YOU.
Please dont scream, it's hurting my ears.
Bruno
......~~
Christian Bau <ch***********@ cbau.freeserve. co.uk> wrote in message news:<ch******* *************** ***********@slb-newsm1.svr.pol. co.uk>... In article <87************ **************@ posting.google. com>,
ww*******@mail2 .swjtu.edu.cn (wwj) wrote:
Hi ,all
I want to know the difference between char a[6] and char *p=new
char[6] and the difference between the heap and the stack ,and if the
char a[6] is corresponding to the stack in MEMORY,and char *p=new
char[6] is corresponding to the heap of MEMORY.
Could you have a very very close look at the name of the newsgroup you
are posting to? Is the name of that newsgroup "comp.lang.c++" ? If not,
then you are posting your C++ questions to the wrong newsgroup.
Bruno ,Anyway firstly I thank you ,it's my wrong to post it here and
now yet I can not tell from c and c++ well. Then,I want to say that
our world is developing ,all developing,and the language c not be
invent from uk or by you or Christian Bau,ple you do not regulate(this
word not proper) it or sneer at others (new one) or rave at others .
Bruno Desthuilliers <bd***********@ removeme.free.f r> wrote in message news:<3f******* *************** *@news.free.fr> ... wwj wrote: Hi ,all
I want to know the difference between char a[6] and char *p=new
char[6]
The difference is that the second statement has no meaning in C.
C++ is the second group down the hall, on the the left...
and the difference between the heap and the stack,
This has nothing to do with the C language.
and if the
char a[6] is corresponding to the stack in MEMORY,and char *p=new
char[6] is corresponding to the heap of MEMORY.
Since the C language has no notion of stack or heap, and since the
second statement has no meaning in C, we can't answer such a question.
Give me some hint.
first hint : C and C++ are two different languages. please post on the
appropriate newsgroup.
second hint :
#include <regulars_pleas e_correct_me_if _necessary.h>
C <ot>and C++</ot> have a notion of automatic memory and a notion of
dynamic memory.
Automatic memory is the default storage, and local variables are usually
automatic. This means that memory is automatically allocated for these
variable at the beginning of the block, and that this memory is
automatically freed at the end of the block.
Automatic memory *may* be, on *some* platforms, implemented with a stack.
Dynamic memory is memory that is allocated on demand, with a special
mechanism (in C, usually the 'malloc()' function, <ot>in C++ usually the
'new' operator</ot>), and that must be freed by code - usually in C with
the 'free()' function <ot>and in C++ with 'delete'</ot>). Not freeing
dynamically allocated memory (usually) causes a 'memory leak'.
Dynamic memory *may* be, on *some* platforms, implemented with a 'heap'.
Third hint : please learn the difference between C and C++, choose the
one you like, get yourself a *good* book on it, and post on the
appropriate group - after you've read the group's FAQ.
THANK YOU.
Please dont scream, it's hurting my ears.
Bruno
wwj <ww*******@mail 2.swjtu.edu.cn> scribbled the following: Bruno ,Anyway firstly I thank you ,it's my wrong to post it here and
now yet I can not tell from c and c++ well. Then,I want to say that
our world is developing ,all developing,and the language c not be
invent from uk or by you or Christian Bau,ple you do not regulate(this
word not proper) it or sneer at others (new one) or rave at others .
In other words, because neither Bruno or Christian invented C, this
newsgroup can freely be abused by posting off-topic messages which don't
concern C at all?
--
/-- Joona Palaste (pa*****@cc.hel sinki.fi) ------------- Finland --------\
\-- http://www.helsinki.fi/~palaste --------------------- rules! --------/
"You could take his life and..."
- Mirja Tolsa
wwj wrote:
Bruno ,Anyway firstly I thank you ,it's my wrong to post it here and
now yet I can not tell from c and c++ well. Then,I want to say that
our world is developing ,all developing,and the language c not be
invent from uk or by you or Christian Bau,ple you do not regulate(this
word not proper) it or sneer at others (new one) or rave at others .
Don't top-post. Your replies belong following properly trimmed quotes.
This newsgroup has topicality guidelines, which will be enforced by all
the regulars. Those two happened to be the first to correct you, others
would certainly have if they hadn't.
I suggest you apologize to the group and the two individuals for your
poor behavior.
Brian Rodenborn
Joona I Palaste wrote: wwj <ww*******@mail 2.swjtu.edu.cn> scribbled the following:
Bruno ,Anyway firstly I thank you ,it's my wrong to post it here and
now yet I can not tell from c and c++ well. Then,I want to say that
our world is developing ,all developing,and the language c not be
invent from uk or by you or Christian Bau,ple you do not regulate(this
word not proper) it or sneer at others (new one) or rave at others .
In other words, because neither Bruno or Christian invented C, this
newsgroup can freely be abused by posting off-topic messages which don't
concern C at all?
wwj obviously has a language barrier, and is doing his/her best.
So there is no need to pick at him. Simply drop it, and see what
develops. He already explained he doesn't know the difference
between C and C++, and obviously has not been told to lurk before
posting.
--
Chuck F (cb********@yah oo.com) (cb********@wor ldnet.att.net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home .att.net> USE worldnet address!
i have said its my wrong to post it here !!!!!!!
Joona I Palaste <pa*****@cc.hel sinki.fi> wrote in message In other words, because neither Bruno or Christian invented C, this
newsgroup can freely be abused by posting off-topic messages which don't
concern C at all?
why?why apologize for my poor behavior ?what is my poor behavior?
Default User <fi********@boe ing.com.invalid > wrote in message news:<3F******* ********@boeing .com.invalid>.. . Don't top-post. Your replies belong following properly trimmed quotes.
This newsgroup has topicality guidelines, which will be enforced by all
the regulars. Those two happened to be the first to correct you, others
would certainly have if they hadn't.
I suggest you apologize to the group and the two individuals for your
poor behavior.
Brian Rodenborn This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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last post by:
Hi ,all
I want to know the difference between char a and char *p=new
char and the difference between the heap and the stack ,and if the
char a is corresponding to the stack in MEMORY,and char *p=new
char is corresponding to the heap of MEMORY.
Give me some hint.
THANK YOU.
|
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