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why still use C?

no this is no trollposting and please don't get it wrong but iam very
curious why people still use C instead of other languages especially C++.

i heard people say C++ is slower than C but i can't believe that. in pieces
of the application where speed really matters you can still use "normal"
functions or even static methods which is basically the same.

in C there arent the simplest things present like constants, each struct and
enum have to be prefixed with "struct" and "enum". iam sure there is much
more.

i don't get it why people program in C and faking OOP features(functi on
pointers in structs..) instead of using C++. are they simply masochists or
is there a logical reason?

i feel C has to benefit against C++.

--
cody

[Freeware, Games and Humor]
www.deutronium.de.vu || www.deutronium.tk
--
comp.lang.c.mod erated - moderation address: cl**@plethora.n et
Nov 13 '05
687 23866
id**@hotmail.co m (Dave Hansen) wrote in message news:<3f******* **********@News .CIS.DFN.DE>...
....
Typedefing arrays is _evil_.


Would you elaborate? I've seldom had the need, but I don't see the evil in it.
Nov 13 '05 #461
On 30 Oct 2003 08:20:29 -0800, ku****@wizard.n et (James Kuyper) wrote:
id**@hotmail.c om (Dave Hansen) wrote in message news:<3f******* **********@News .CIS.DFN.DE>...
...
Typedefing arrays is _evil_.


Would you elaborate? I've seldom had the need, but I don't see the evil in it.


Mainly because it acts like an array, but doesn't look like one.
Consider the folowing:

--- begin included file ---

C:\Dave>type tda.c
#include <stdio.h>
#include <string.h>

typedef char Evil[10];
typedef struct{Evil data;} Not_So_Evil;

void test(Evil one, Not_So_Evil two)
{
unsigned s1,s2;

s1 = sizeof(Evil);
s2 = sizeof one;

printf("In test, sizeof(Evil) is %u while "
"sizeof one is %u\n", s1, s2);

s1 = sizeof(Not_So_E vil);
s2 = sizeof(two);

printf("sizeof( Not_So_Evil) is %u while sizeof two is %u\n",s1,s2);

strcpy(one,"Clo bber!");
strcpy(two.data , "Clobber!") ;
}

int main(void)
{
Evil one;
Not_So_Evil two;

unsigned s1,s2;

strcpy(one, "Untouched" );
strcpy(two.data , "Untouched" );

printf("Before test, one is %s, two is %s\n", one, two.data);

s1 = sizeof(Evil);
s2 = sizeof one;

printf("In main, sizeof(Evil) is %u while "
"sizeof one is %u\n", s1, s2);

s1 = sizeof(Not_So_E vil);
s2 = sizeof(two);

printf("sizeof( Not_So_Evil) is %u while sizeof two is %u\n",s1,s2);

test(one,two);

printf("After test, one is %s, two is %s\n", one, two.data);

return 0;
}

C:\Dave>gcc -ansi -pedantic -Wall tda.c

C:\Dave>a
Before test, one is Untouched, two is Untouched
In main, sizeof(Evil) is 10 while sizeof one is 10
sizeof(Not_So_E vil) is 10 while sizeof two is 10
In test, sizeof(Evil) is 10 while sizeof one is 4
sizeof(Not_So_E vil) is 10 while sizeof two is 10
After test, one is Clobber!, two is Untouched

C:\Dave>
--- end included file ---

Regards,

-=Dave
--
Change is inevitable, progress is not.
Nov 13 '05 #462
On Mon, 27 Oct 2003 18:37:06 +0000 (UTC), Richard Heathfield
<do******@addre ss.co.uk.invali d> wrote:
James Kuyper wrote:

<snip: C to C++ incompatibiliti es>
14. Any use of an enumeration. Different enumeration types can have
different sizes and representations in C++, which would make virtually
any use of them in a header file context dangerous.


I don't /think/ this is a problem for me, but thanks for the warning.

This is actually *possible* in C, but less likely. The difference is
that C++ allows enum values to exceed int and thus force
implementation like long, while in C it is always legal and usually
most time-efficient, though not (data-)space-efficient, to implement
all enum types like int.

But I see no danger if you use enum types as distinct types rather
than just named integers, which C++ enforces although C does not.

- David.Thompson1 at worldnet.att.ne t
Nov 13 '05 #463
cody wrote:
i though in standard C, there isn't such a thing like "const" you can only
use macros to fake them.


Wrong.
--
comp.lang.c.mod erated - moderation address: cl**@plethora.n et
Nov 13 '05 #464

On Thu, 7 Nov 2003, Douglas A. Gwyn wrote:

[a response to a message posted here on Oct 7]

See, this is why I snip c.l.c.moderated from follow-ups
whenever I remember to do it. Cross-posting between
moderated and unmoderated groups is a recipe for
unintelligible conversations, IMHO.
Does anyone more experienced in the ways of Usenet
know a way to keep both the original cross-post list
(including both c.l.c and c.l.c.m) *AND* get one's
message to show up in the unmoderated groups in a
reasonable amount of time? I assume the usual
dominant factor is how long it takes the c.l.c.m
moderator to check his mail, in this case...

-Arthur
Nov 13 '05 #465
"E. Robert Tisdale" <E.************ **@jpl.nasa.gov > writes:
Can you show us an example of a "system"
on which this happens *not* to work?


Solaris 7+, SPARC, 64 bit code, Sun C compiler.

Casper
--
Expressed in this posting are my opinions. They are in no way related
to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may
be fiction rather than truth.
Nov 13 '05 #466
Keith Thompson <ks*@cts.com> writes:
The macros look fine, but the casts are still unnecessary and
potentially dangerous. Why not just #define NEW(type) \
(malloc(sizeof( type)))


The use of macros to "hide" standard constructs is not "fine" by any
definition of "fine" that I can think of.

It makes the code *harder* to understand for other people.

Casper
--
Expressed in this posting are my opinions. They are in no way related
to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may
be fiction rather than truth.
Nov 13 '05 #467
Casper H.S. Dik wrote:

Keith Thompson <ks*@cts.com> writes:
The macros look fine, but the casts are still unnecessary and
potentially dangerous. Why not just

#define NEW(type) \
(malloc(sizeof( type)))


The use of macros to "hide" standard constructs is not "fine" by any
definition of "fine" that I can think of.

It makes the code *harder* to understand for other people.


I agree.
If you know C, you know (malloc(sizeof( type))).
NEW is something that you have to look up and remember,
when you see it in a .c file.
When you see NEW in another .c file,
by the same author, in the same program,
you still have to check what NEW means,
either by seeing if NEW is identically defined in both .c files,
or if the same .h file which defines NEW is included in both .c files,
or maybe NEW doesn't mean the same thing in both files.

--
pete
Nov 13 '05 #468
On Fri, 7 Nov 2003, Casper H.S. Dik wrote:

CHD>Keith Thompson <ks*@cts.com> writes:
CHD>
CHD>>The macros look fine, but the casts are still unnecessary and
CHD>>potentiall y dangerous. Why not just
CHD>
CHD>> #define NEW(type) \
CHD>> (malloc(sizeof( type)))
CHD>
CHD>
CHD>
CHD>The use of macros to "hide" standard constructs is not "fine" by any
CHD>definition of "fine" that I can think of.
CHD>
CHD>It makes the code *harder* to understand for other people.

Definitely. Look at unix v7 sh source for an example...

harti
--
harti brandt,
http://www.fokus.fraunhofer.de/resea...brandt/private
br****@fokus.fr aunhofer.de, ha***@freebsd.o rg
Nov 13 '05 #469
Casper H.S. Dik wrote:
Keith Thompson <ks*@cts.com> writes:
The macros look fine, but the casts are still unnecessary and
potentially dangerous. Why not just

#define NEW(type) \
((type *)malloc(sizeof (type)))


The use of macros to "hide" standard constructs is not "fine" by any
definition of "fine" that I can think of.

It makes the code *harder* to understand for other people.


Nonsense!

Using a functor ([inline] function call, C preprocessor macro, etc.)
is *always* preferable to inlining functions manually.

Nov 13 '05 #470

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