k&r2

[Bill Cunningham]

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why is this
code from k&r2 not working?

Bill

[Walter Roberson]

In article <b9l2j.29168$Xg.23657@trnddc06>,
Bill Cunningham <so**@net.comwrote:

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

>/* code */

>#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;

Did you notice the misspelling of celsius on the above line?

fahr=farh+step;}}

/*end*/

--
"No one has the right to destroy another person's belief by
demanding empirical evidence." -- Ann Landers

[Marco Manfredini]

Bill Cunningham wrote:

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why is this
code from k&r2 not working?

You should read the message again. Isn't it rather "celsuis is
undefined"? celsuis?

And did you get something about "farh"?

[Bill Cunningham]

"Walter Roberson" <ro******@ibd.nrc-cnrc.gc.cawrote in message
news:fi**********@canopus.cc.umanitoba.ca...

In article <b9l2j.29168$Xg.23657@trnddc06>,
Bill Cunningham <so**@net.comwrote:

> I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

>>/* code */

>>#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;

Did you notice the misspelling of celsius on the above line?

No. My mistake then. :(

>

> fahr=farh+step;}}

/*end*/

[CBFalconer]

Bill Cunningham wrote:

>
I copied this code from page 9 k&r 2 and it gives an error that
even I can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why
is this code from k&r2 not working?

Because that is not the code from K&R.

--
Chuck F (cbfalconer at maineline dot net)
<http://cbfalconer.home.att.net>
Try the download section.
--
Posted via a free Usenet account from http://www.teranews.com

[J. J. Farrell]

Bill Cunningham wrote:

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why is this
code from k&r2 not working?

Most likely because of various typos which make it very different from
the code in K&R2.

[Joe Wright]

Bill Cunningham wrote:

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why is this
code from k&r2 not working?

Bill

Mine works..

#include <stdio.h>

int main(void)
{
int fahr, celcius;
int lower, upper, step;

lower = 0;
upper = 300;
step = 20;

fahr = lower;
while (fahr <= upper) {
celcius = 5 * (fahr - 32) / 9;
printf("%d\t%d\n", fahr, celcius);
fahr = fahr + step;
}
return 0;
}

--
Joe Wright
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---

[TerryP]

Bill Cunningham wrote:

>> {celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;

Did you notice the misspelling of celsius on the above line?

No. My mistake then. :(

The Typo, the bane of compilation!

I remember I once spent 2 hours trying to find the problem in a program (of
mine) that failed to build, some times I wish they made a compiler that gave
errors like:

file:line !!! PEBKAC !!!
sp,member != sp.member -- you are a blind idiot,

After finally finding out that I had been working to long to notice the
difference between , and . I decided to get a better font xD

--
no brainer:
A decision which, viewed through the retrospectoscope,
is "obvious" to those who failed to make it originally.

[Martin Ambuhl]

Bill Cunningham wrote:

I copied this code from page 9 k&r 2 and it gives an error that even I
can see. Celsius is uninialized.

It has a value assigned before use, so what's the problem?
[...]
int fahr,celsius,lower,upper,step;
[...]

while (fahr<=upper)
{celsius=5*(fahr-32)/9;

[...]

Why is this
code from k&r2 not working?

Is this really the code from K&R2? If it is, perhaps we should retreat
to K&R1, where these lines are
while )fahr <= upper) {
celsius = (5.0/9.0) * (fahr-32.0);

[Joachim Schmitz]

"CBFalconer" <cb********@yahoo.comschrieb im Newsbeitrag
news:47***************@yahoo.com...

Bill Cunningham wrote:

>>
I copied this code from page 9 k&r 2 and it gives an error that
even I can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why
is this code from k&r2 not working?

Because that is not the code from K&R.

Very helpful answer 8-(
Fortunatly others had been far more helpfull in pointing out the typo(s)

Bye, Jojo

[Joachim Schmitz]

"Martin Ambuhl" <ma*****@earthlink.netschrieb im Newsbeitrag
news:5q*************@mid.individual.net...

Bill Cunningham wrote:

> I copied this code from page 9 k&r 2 and it gives an error that even
I can see. Celsius is uninialized.

It has a value assigned before use, so what's the problem?
[...]
int fahr,celsius,lower,upper,step;
[...]

> while (fahr<=upper)
{celsius=5*(fahr-32)/9;

[...]

>Why is this code from k&r2 not working?

Is this really the code from K&R2? If it is, perhaps we should retreat to
K&R1, where these lines are
while )fahr <= upper) {
celsius = (5.0/9.0) * (fahr-32.0);

Really? Does K&R1 have such bad typos?

After correction it gives a warning:
implicit conversion from "double" to "int": rounding, sign extension, or
loss of accuracy may result

Bye, Jojo

[Joachim Schmitz]

"Joe Wright" <jo********@comcast.netschrieb im Newsbeitrag
news:27******************************@comcast.com. ..

Bill Cunningham wrote:

> I copied this code from page 9 k&r 2 and it gives an error that even
I can see. Celsius is uninialized.

/* code */

#include <stdio.h>

main(){
int fahr,celsius,lower,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fahr-32)/9;
printf("%d\t%d\n",fahr,celsuis;
fahr=farh+step;}}

/*end*/

Celsius is intialized within the body of the while function. Why is this
code from k&r2 not working?

Bill

Mine works..

#include <stdio.h>

int main(void)
{
int fahr, celcius;
int lower, upper, step;

lower = 0;
upper = 300;
step = 20;

fahr = lower;
while (fahr <= upper) {
celcius = 5 * (fahr - 32) / 9;
printf("%d\t%d\n", fahr, celcius);
fahr = fahr + step;
}
return 0;
}

Your code might work, but it too misspells celsius.

Bye, Jojo

PS: This is something I notice immediatelly, because Celsius(weg) is the
street I live at... If I have to spell Celsius I usually refer to
Fahrenheit, once with the result that it got spelled "Felsius" 8-)

[Martin Ambuhl]

Joachim Schmitz wrote:

"Martin Ambuhl" <ma*****@earthlink.netschrieb im Newsbeitrag
news:5q*************@mid.individual.net...

>Bill Cunningham wrote:

>> I copied this code from page 9 k&r 2 and it gives an error that even
I can see. Celsius is uninialized.

It has a value assigned before use, so what's the problem?
[...]
int fahr,celsius,lower,upper,step;
[...]

>> while (fahr<=upper)
{celsius=5*(fahr-32)/9;

[...]

>>Why is this code from k&r2 not working?

Is this really the code from K&R2? If it is, perhaps we should retreat to
K&R1, where these lines are
while )fahr <= upper) {
celsius = (5.0/9.0) * (fahr-32.0);

Really? Does K&R1 have such bad typos?

No, that's my typo (and unless I missing something, that is properly
singular).

>
After correction it gives a warning:
implicit conversion from "double" to "int": rounding, sign extension, or
loss of accuracy may result

While your implementation is free to issue such warnings, they are
hardly required. People with a mania for compiles without warnings
might take this is an indication that they should "fix" the code with a
useless cast. Since casts to "shut the compiler up" are all too
frequently a bad idea, I'm not so sure that the warning is a good idea.

[santosh]

In article <fi**********@online.de>, Joachim Schmitz
<no*********@schmitz-digital.dewrote on Monday 26 Nov 2007 1:05 pm:

"Martin Ambuhl" <ma*****@earthlink.netschrieb im Newsbeitrag
news:5q*************@mid.individual.net...

>Bill Cunningham wrote:

>> I copied this code from page 9 k&r 2 and it gives an error that
even
I can see. Celsius is uninialized.

It has a value assigned before use, so what's the problem?
[...]
int fahr,celsius,lower,upper,step;
[...]

>> while (fahr<=upper)
{celsius=5*(fahr-32)/9;

[...]

>>Why is this code from k&r2 not working?

Is this really the code from K&R2? If it is, perhaps we should
retreat to K&R1, where these lines are
while )fahr <= upper) {
celsius = (5.0/9.0) * (fahr-32.0);

Really? Does K&R1 have such bad typos?

After correction it gives a warning:
implicit conversion from "double" to "int": rounding, sign extension,
or loss of accuracy may result

I could be wrong but, depending on the value in 'fahr', that statement
might invoke undefined behaviour.

[Richard Heathfield]

Joachim Schmitz said:

"Joe Wright" <jo********@comcast.netschrieb im Newsbeitrag

<snip>

> printf("%d\t%d\n", fahr, celcius);
fahr = fahr + step;
}
return 0;
}

Your code might work, but it too misspells celsius.

Bye, Jojo

PS: This is something I notice immediatelly,

I note that your spelling flame contains a spelling error. It's
heart-warming to see the old traditions being maintained. :-)

--
Richard Heathfield <http://www.cpax.org.uk>
Email: -http://www. +rjh@
Google users: <http://www.cpax.org.uk/prg/writings/googly.php>
"Usenet is a strange place" - dmr 29 July 1999

[Joachim Schmitz]

"Richard Heathfield" <rj*@see.sig.invalidschrieb im Newsbeitrag
news:r5******************************@bt.com...

Joachim Schmitz said:

>"Joe Wright" <jo********@comcast.netschrieb im Newsbeitrag

<snip>

>> printf("%d\t%d\n", fahr, celcius);
fahr = fahr + step;
}
return 0;
}

Your code might work, but it too misspells celsius.

Bye, Jojo

PS: This is something I notice immediatelly,

I note that your spelling flame contains a spelling error. It's
heart-warming to see the old traditions being maintained. :-)

After all I live at Celsiusweg, not at Immediately Drive 8-)

Bye, Jojo

[Joachim Schmitz]

"Martin Ambuhl" <ma*****@earthlink.netschrieb im Newsbeitrag
news:5q*************@mid.individual.net...

Joachim Schmitz wrote:

>"Martin Ambuhl" <ma*****@earthlink.netschrieb im Newsbeitrag
news:5q*************@mid.individual.net...

>>Bill Cunningham wrote:

snip

>After correction it gives a warning:
implicit conversion from "double" to "int": rounding, sign extension, or
loss of accuracy may result

While your implementation is free to issue such warnings, they are hardly
required. People with a mania for compiles without warnings might take
this is an indication that they should "fix" the code with a useless cast.
Since casts to "shut the compiler up" are all too frequently a bad idea,
I'm not so sure that the warning is a good idea.

But in this case it tells me that using double arithmetic doesn't buy a
thing in the first place.

Bye, Jojo