Does C follow call by value convention or call by reference?
i see that there is nothing like reference in C standard but it is
referenced.
still, what should be the answer for the above question?
22  4191 
In article <11************ **********@g4g2 000hsf.googlegr oups.com>,
Nehil <ne***********@ gmail.comwrote:
>Does C follow call by value convention or call by reference?
i see that there is nothing like reference in C standard but it is
referenced.
still, what should be the answer for the above question?
Are you the same "Nehil" who is undertaking to write
a garbage collector for C (*)? If so, have you ever heard the
advice "Walk before you run?"
(*) And, no doubt, next week, the Mars lander program.
On Jul 15, 6:00 pm, gaze...@xmissio n.xmission.com (Kenny McCormack)
wrote:
In article <1184504183.456 641.240...@g4g2 000hsf.googlegr oups.com>,
Nehil <nehilparas...@ gmail.comwrote:
Does C follow call by value convention or call by reference?
i see that there is nothing like reference in C standard but it is
referenced.
still, what should be the answer for the above question?
Are you the same "Nehil" who is undertaking to write
a garbage collector for C (*)? If so, have you ever heard the
advice "Walk before you run?"
(*) And, no doubt, next week, the Mars lander program.
have u changed your name or r u same as Eric Sosman?
well, what if i want to learn the new concepts of much debate. and by
now the garbage collector is almost done as a low lovel project. and
all the things i've asked are related to this project only somehow.
so if u know the answer plz reply appropriately.
Nehil said:
Does C follow call by value convention or call by reference?
C is a 100% call-by-value language. Function arguments are expressions,
not objects. These expressions are evaluated, and those values are
passed to the function.
--
Richard Heathfield <http://www.cpax.org.uk >
Email: -www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999
Nehil wrote:
Does C follow call by value convention or call by reference?
Call by value.
If one wants the effects provided by call-by-reference, one has to
implement them by hand.
[Note that for /arrays/, it can /look like/ call by reference;
but that isn't anything to do with parameter-passing, it's
to do with the way C arrays decay into pointers.]
i see that there is nothing like reference in C standard but it is
referenced.
Pardon?
still, what should be the answer for the above question?
I don't know what the answer /should/ be; I only know what it /is/.
--
Passed By Name Hedgehog
"Our future looks secure, but it's all out of our hands"
- Magenta, /Man and Machine/
Nehil wrote:
Does C follow call by value convention or call by reference?
i see that there is nothing like reference in C standard but it is
referenced.
still, what should be the answer for the above question?
C only supports call by value. However you can simulate call by
reference using pointers.
On Sun, 15 Jul 2007 13:22:52 +0000, Richard Heathfield wrote:
>C is a 100% call-by-value language. Function arguments are expressions,
not objects. These expressions are evaluated, and those values are
passed to the function.
This statement is not wrong but highly misleading. Esp. it doesn't
cover the distinction between the following:
void foo1 (stuct something sth);
void foo2 (stuct something* ptr);
--
Roland Pibinger
"The best software is simple, elegant, and full of drama" - Grady Booch
santosh <sa*********@gm ail.comwrites:
Nehil wrote:
>Does C follow call by value convention or call by reference?
i see that there is nothing like reference in C standard but it is
referenced.
still, what should be the answer for the above question?
C only supports call by value. However you can simulate call by
reference using pointers.
and arrays... http://mces.blogspot.com/2005/08/pas...ence-in-c.html rp*****@yahoo.c om (Roland Pibinger) writes:
On Sun, 15 Jul 2007 13:22:52 +0000, Richard Heathfield wrote:
>>C is a 100% call-by-value language. Function arguments are expressions,
not objects. These expressions are evaluated, and those values are
passed to the function.
This statement is not wrong but highly misleading. Esp. it doesn't
cover the distinction between the following:
void foo1 (stuct something sth);
void foo2 (stuct something* ptr);
It's all "words". I suspect the OP was looking for pointers - which also
makes me wonder if he is a troll. Since how can he implement a garbage
collector and not either (a) know the answer or (b) know how to google
up the answer.
Roland Pibinger wrote:
On Sun, 15 Jul 2007 13:22:52 +0000, Richard Heathfield wrote:
>>C is a 100% call-by-value language. Function arguments are expressions,
not objects. These expressions are evaluated, and those values are
passed to the function.
This statement is not wrong but highly misleading. Esp. it doesn't
cover the distinction between the following:
void foo1 (stuct something sth);
void foo2 (stuct something* ptr);
Two functions, distinguished by argument types only. So what?
Structs are passed by value, and pointers are passed by value.
What distinction are you referring to?
--
Multiple Valued Hedgehog
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