k&r2

**Walter Roberson** · Nov 25 '07, 08:55 PM

Re: k&r2

In article <b9l2j.29168$Xg .23657@trnddc06 >,
Bill Cunningham <some@net.comwr ote:

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,lo wer,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 25 '07, 09:05 PM

Re: k&r2

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,lo wer,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 25 '07, 09:15 PM

Re: k&r2

"Walter Roberson" <roberson@ibd.n rc-cnrc.gc.cawrote in message
news:ficn3p$4rh $1@canopus.cc.u manitoba.ca...

In article <b9l2j.29168$Xg .23657@trnddc06 >,
Bill Cunningham <some@net.comwr ote:

> 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,lo wer,upper,step;
> lower=0;
> upper=300;
> step=20;
> fahr=lower;
> while (fahr<=upper)
> {celsius=5*(fah r-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** · Nov 25 '07, 10:35 PM

Re: k&r2

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,lo wer,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 25 '07, 10:45 PM

Re: k&r2

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,lo wer,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 26 '07, 03:25 AM

Re: k&r2

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,lo wer,upper,step;
lower=0;
upper=300;
step=20;
fahr=lower;
while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 26 '07, 05:25 AM

Re: k&r2

Bill Cunningham wrote:

>> {celsius=5*(fah r-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 retrospectoscop e,
is "obvious" to those who failed to make it originally.

**Martin Ambuhl** · Nov 26 '07, 05:55 AM

Re: k&r2

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,lo wer,upper,step;
[...]

while (fahr<=upper)
{celsius=5*(fah r-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** · Nov 26 '07, 07:25 AM

Re: k&r2

"CBFalconer " <cbfalconer@yah oo.comschrieb im Newsbeitrag
news:4749F6CE.B 79E4735@yahoo.c om...

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,lo wer,upper,step;
> lower=0;
> upper=300;
> step=20;
> fahr=lower;
> while (fahr<=upper)
> {celsius=5*(fah r-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** · Nov 26 '07, 07:45 AM

Re: k&r2

"Martin Ambuhl" <mambuhl@earthl ink.netschrieb im Newsbeitrag
news:5qv56aF11u 6miU1@mid.indiv idual.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,lo wer,upper,step;
[...]

> while (fahr<=upper)
> {celsius=5*(fah r-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** · Nov 26 '07, 07:45 AM

Re: k&r2

"Joe Wright" <joewwright@com cast.netschrieb im Newsbeitrag
news:27SdnaWFpZ vgp9fanZ2dnUVZ_ hudnZ2d@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,lo wer,upper,step;
> lower=0;
> upper=300;
> step=20;
> fahr=lower;
> while (fahr<=upper)
> {celsius=5*(fah r-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** · Nov 26 '07, 09:05 AM

Re: k&r2

Joachim Schmitz wrote:

"Martin Ambuhl" <mambuhl@earthl ink.netschrieb im Newsbeitrag
news:5qv56aF11u 6miU1@mid.indiv idual.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,lo wer,upper,step;
>[...]

>> while (fahr<=upper)
>> {celsius=5*(fah r-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** · Nov 26 '07, 09:15 AM

Re: k&r2

In article <fidsvi$1gj$1@o nline.de>, Joachim Schmitz
<nospam.jojo@sc hmitz-digital.dewrote on Monday 26 Nov 2007 1:05 pm:

"Martin Ambuhl" <mambuhl@earthl ink.netschrieb im Newsbeitrag
news:5qv56aF11u 6miU1@mid.indiv idual.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,lo wer,upper,step;
>[...]

>> while (fahr<=upper)
>> {celsius=5*(fah r-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** · Nov 26 '07, 09:45 AM

Re: k&r2

Joachim Schmitz said:

"Joe Wright" <joewwright@com cast.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

k&r2

k&r2

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