Hi fellows,
I am reading some books to learn the C programming language, and
sometimes I have the feeling that when somebody becomes a C expert, he
must learn a more modern and object-oriented language.
When I read things like "... C++ is an evolution of C ..." or "... C
is a subset of C++ ..." I tend to believe that I will have to learn C+
+ sooner or later. It sounds like C++ is the future and C is the past
(and will be no longer useful anytime soon).
And how about the other object-oriented language: Java. They say it is
very powerful and it seems to be everywhere.
So, I started to ask myself...
Is object-oriented better?
Is necessary to switch to C++ or some object-oriented language?
Is it true that C tends to be decreasingly used?
And finally ... why do people need object-oriented languages?
I am sorry for making so many questions.
Thank you all,
Arnaldo
Mar 21 '07
46  3037 
"user923005 " <dc*****@connx. comwrites:
On Mar 21, 1:38 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
>On 21 Mar 2007 01:24:56 -0700, "arnuld" wrote:
>On Mar 21, 10:18 am, ajb...@gmail.co m wrote:
or "... C is a subset of C++ ..."
>complete NON-SENSE
Syntacticall y, C is a subset of C++ with minor exceptions. This fact
was the main reason for C++'s initial success.
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
But would you deny that C++'s close relationship to C had an
effect on its initial success? My guess is that this is a true
statement, although I'm no scholar of C++ history.
--
"What is appropriate for the master is not appropriate for the novice.
You must understand the Tao before transcending structure."
--The Tao of Programming
"Ben Pfaff" <bl*@cs.stanfor d.eduwrote in message
>
But would you deny that C++'s close relationship to C had an
effect on its initial success? My guess is that this is a true
statement, although I'm no scholar of C++ history.
I think the name was a big factor.
Most people would ignore "C with classes" because they last needed classes
back in high school. However to admit you don't know a language called C++
is to brand yourself a person--. So it caught on.
--
Free games and programming goodies. http://www.personal.leeds.ac.uk/~bgy1mm
"Charlton Wilbur" <cw*****@chroma tico.netwrote in message
>
Surely you aren't relegating Lisp, COBOL, and FORTRAN to the dustbin
of history?
I've just spent the last three days translating a Fortran 77 routine to C.
It was a long routine. The C version will probably run slower, but it will
be easier to try out different algorithms to speed it up, and it can take
inputs of arbitrary size. F77 doesn't have a malloc().
--
Free games and programming goodies. http://www.personal.leeds.ac.uk/~bgy1mm
<aj****@gmail.c omwrote in message
Is object-oriented better?
Is an axe better than a saw? You can use either for a lot of jobs, but most
people would dismiss the question as meaningless.
>
Is necessary to switch to C++ or some object-oriented language?
It is necessary to know an object-oriented language if you wish to be an
adequately skilled programmer. In practise that means either Java or C++.
You should also understand where not to use object-oriented design.
>
Is it true that C tends to be decreasingly used?
More and more languages are coming out and that is inevitably having an
effect on C's market share. However none look like displacing C as the
default lanauge for serious programming.
>
And finally ... why do people need object-oriented languages?
To do object-oriented design. Though it is possible to implement object
hierarchies in any language, including C, it is so messy as to be unusable.
If you are asking why do object-oriented design, if you want your program to
be extended by a third party in ways unforseen by you, but without any
changes to your source code, objects offer by far the easiest way to do
this. For instance a space invader may travel a path specified by a "line"
object. A line has certain properties, namely that it has a length, and x, y
coordinates given by a t value. Any object supporting the interface "line"
can be passed to the space invader control, including really odd lines such
as the programmer's name in Arabic.
More controversially , object-oriented desings may be easier to test, debug
and maintain than procedural ones. Personally I am sceptical, but it is
received wisdom.
--
Free games and programming goodies. http://www.personal.leeds.ac.uk/~bgy1mm
On 21 Mar 2007 14:14:26 -0700, "user923005 " wrote:
>Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
'How close is "as close as possible to C?" Traditionally, it has
almost been possible to equate that statement with "compatible with C
except where the C++ type system would be compromised." ' http://www.research.att.com/~bs/siblings_short.pdf
On Mar 21, 3:29 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
On 21 Mar 2007 14:14:26 -0700, "user923005 " wrote:
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
'How close is "as close as possible to C?" Traditionally, it has
almost been possible to equate that statement with "compatible with C
except where the C++ type system would be compromised." '
http://www.research.att.com/~bs/siblings_short.pdf
/*
Where is the C++ tyep system compromised here:
*/
int main(void)
{
int new = 0;
return new;
}
On Mar 21, 3:29 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
On 21 Mar 2007 14:14:26 -0700, "user923005 " wrote:
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
'How close is "as close as possible to C?" Traditionally, it has
almost been possible to equate that statement with "compatible with C
except where the C++ type system would be compromised." '
http://www.research.att.com/~bs/siblings_short.pdf
Having read the paper, I agree with it. I think this statement is
telling:
'The "as close as possible ..." rules were crafted under the
assumption that "the other language" was immutable. In reality, it has
not been so: Just look as the number of cross borrowings between C and
C++ [Stroustrup,2002].'
On Mar 21, 2:29 pm, Ben Pfaff <b...@cs.stanfo rd.eduwrote:
"user923005 " <dcor...@connx. comwrites:
On Mar 21, 1:38 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
On 21 Mar 2007 01:24:56 -0700, "arnuld" wrote:
On Mar 21, 10:18 am, ajb...@gmail.co m wrote:
or "... C is a subset of C++ ..."
complete NON-SENSE
Syntactically, C is a subset of C++ with minor exceptions. This fact
was the main reason for C++'s initial success.
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
But would you deny that C++'s close relationship to C had an
effect on its initial success? My guess is that this is a true
statement, although I'm no scholar of C++ history.
Certainly not. On the other hand, I think that years of "Thinking in
C" made it harder for me to think in terms of objects. On the other,
other hand, I had years of Fortran and PL/I before C, and so my
handicap started further back.
The two languages have some syntatical similarities, but I would argue
that used properly, neither language really resembles the other at
all.
--
"What is appropriate for the master is not appropriate for the novice.
You must understand the Tao before transcending structure."
--The Tao of Programming
On Mar 21, 2:14 pm, "user923005 " <dcor...@connx. comwrote:
On Mar 21, 1:38 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
Syntactically, C is a subset of C++ with minor exceptions. This fact
was the main reason for C++'s initial success.
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
I suppose it hinges on what you consider "minor", but please specify
why you consider this claim to be false. It's very rare for programs
to need to call main() recursively, or to care about the type of a
charater constant, for example. The need to cast void * to other
object pointer types is slightly more intrusive, but I'd still
consider it minor. Which are the non-minor exceptions?
On Mar 22, 4:21 am, "user923005 " <dcor...@connx. comwrote:
On Mar 21, 2:29 pm, Ben Pfaff <b...@cs.stanfo rd.eduwrote:
"user923005 " <dcor...@connx. comwrites:
On Mar 21, 1:38 pm, rpbg...@yahoo.c om (Roland Pibinger) wrote:
>On 21 Mar 2007 01:24:56 -0700, "arnuld" wrote:
>On Mar 21, 10:18 am, ajb...@gmail.co m wrote:
>or "... C is a subset of C++ ..."
>complete NON-SENSE
>Syntacticall y, C is a subset of C++ with minor exceptions. This fact
>was the main reason for C++'s initial success.
Even Bjarne Stroustrup has admitted that this claim is false.
C is not a subset of C++ with minor exceptions.
But would you deny that C++'s close relationship to C had an
effect on its initial success? My guess is that this is a true
statement, although I'm no scholar of C++ history.
Certainly not. On the other hand, I think that years of "Thinking in
C" made it harder for me to think in terms of objects. On the other,
other hand, I had years of Fortran and PL/I before C, and so my
handicap started further back.
The two languages have some syntatical similarities, but I would argue
that used properly, neither language really resembles the other at
all.
yes that is what *exactly* i meant
thanks "user------"
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