hello:

I wrote a simple program which does simple math loop and I am testing
under dual core processor

systm1:
intel dual core laptop ; windows xp os
when I spawn of two threads in windows (both under visual c and cygwin
cc) the program behaves as expected.
in single thread mode the time is 2x and clearly one of hte one do of
the processor is being utilized

system2:
amd 4200x2 desktop ubuntu hardy 8.04
here actually the single thread gets slightly better performance. in
multi thereaded both the cpu's are 100%% utilized. but even in single
threaded both the cpu's are alternatively being used 50/100 %%!!

gurus:
any idea why the linux system (i am assuming the difference is due to
OS) is behaving differently?

here is the simple code

I want the GUI of the spinoza system to not piss me off with the
usual
type of progress reporting one sees: the flashy, colorful, and
utterly
uninformative gizmos that go back and forth and round and round until
who knows when.

Therefore, the following C Sharp .Net code constitutes a theory of
progress reporting.

I claim that any fixed-count (limit available at run time before the
start) for loop can be monitored by considering it as the attempt to
accomplish a TASK, the accomplishment of which involves only the
processing of zero, one or more ENTITIES with an ENTITY COUNT. The
actual user (the person running the program) needs to see at what
rate
processing runs.

Each time through the loop, we are at a specific ENTITY NUMBER.

Progress and velocity can then be modeled visually by means of a
histogram such that:

I want the GUI of the spinoza system to not piss me off with the usual
type of progress reporting one sees: the flashy, colorful, and utterly
uninformative gizmos that go back and forth and round and round until
who knows when.

Therefore, the following C Sharp .Net code constitutes a theory of
progress reporting.

I claim that any fixed-count (limit available at run time before the
start) for loop can be monitored by considering it as the attempt to
accomplish a TASK, the accomplishment of which involves only the
processing of zero, one or more ENTITIES with an ENTITY COUNT. The
actual user (the person running the program) needs to see at what rate
processing runs.

Each time through the loop, we are at a specific ENTITY NUMBER.

Progress and velocity can then be modeled visually by means of a
histogram such that:

histogramDimension/maxHistogramDimension = entityNumber/
entityCount

Solving for histogramDimension each time the "progress" handler runs:

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I don't remember the exact syntax, however I've heard that
return a==b;
is valid c (like in gcc does not complain)
my questions:
1) is this real C standard?
2) as there is no true nor false in C (just 0 and not 0) what does
a==b have for a value, if any?
thanx
olivier

can someone please post some complicated question on pointers??

moreover while reading pointers I found out that there is a lot of
difference between an arracy of intergers and an array of
characters(string) ............. relating to
pointers ................am i correct................the way pointers
behave when they have a char array as an address and the way they
behave when they have an integer array as an address ????

please help as pointers is haunting me a lot ??? despite of being
quite old to 'C'

please help

I got the following programme from an old post:
http://tinyurl.com/53oa6o

It was given at a job interview and the question was
"The following program works, but what is a
potential problem with it? "

#include
#include

int main() {
char buf[128];
FILE *fp = fopen(__FILE__, "r");

if (!fp) return EXIT_FAILURE;
while(!feof(fp)) {
if (fgets(buf, sizeof buf, fp))
puts(buf);
}
fclose(fp);
return 0;
}

For my program , I want to convert an integer into array of characters. I
see C has an atoi function o convert from an array of characters to
integers but no standard function to convert from integer to an array opf
chars. Why so ? Does that conversion not come into practice ?

we have sprintf but that riddles with the buffer-overflow problem :( and
snprintf is not in ANSI but in C99.

I have a network program in C ( which is not topical here, hence I did
not post the code). The client sends a number to the server and server
squares the number and sends it back to the client. Now any communication
between them happens using characters. So client sends an array of
characters to the server:

arr[] = { '3', '\0' };

and the server reads and square the number and sends this array back to
the client:

arr_new[] = { '9', '\0' };

Right now I solved the problem using sprintf and by using the number whose
squares are of one digit and I have also limited the size of array to 2
only.

but is this the C way of doing things ?