Help needed Please!

[silverchrono@hotmail.com]

this is my first semester in C
and im trying to figure out how to reset a counter.

heres why im trying to do.

void text()

59 printf("You can end entering the text by using '#'\n");
60 int i=0;
61 int j=0;
62 int k=0;
63 while ((tx[i]=getchar())!='# ')
64 {
65 i++;
66 }
67
68 while(tx[j]!='\0')
69 {
70 putchar(tx[j]+cc[k]);
74 k++; j++;
//basically I want [j] to keep on counting until EOF a// no problem
there
//but i want k to count only from 0 to 2 then resets back to 0 again
then 1 then 2, then resets to 0 again Until EOF...now i have a good
reason why i want k to count from 0 to 2 only and resets to 0

anyone have a clue on how to do this thx.

[Jack Klein]

Re: Help needed Please!

On 1 Mar 2006 21:32:54 -0800, silverchrono@ho tmail.com wrote in
comp.lang.c:
[color=blue]
> this is my first semester in C
> and im trying to figure out how to reset a counter.
>
> heres why im trying to do.
>
> void text()
>
> 59 printf("You can end entering the text by using '#'\n");
> 60 int i=0;
> 61 int j=0;
> 62 int k=0;
> 63 while ((tx[i]=getchar())!='# ')
> 64 {
> 65 i++;
> 66 }
> 67
> 68 while(tx[j]!='\0')
> 69 {
> 70 putchar(tx[j]+cc[k]);
> 74 k++; j++;
> //basically I want [j] to keep on counting until EOF a// no problem
> there
> //but i want k to count only from 0 to 2 then resets back to 0 again
> then 1 then 2, then resets to 0 again Until EOF...now i have a good
> reason why i want k to count from 0 to 2 only and resets to 0
>
> anyone have a clue on how to do this thx.[/color]

How about this, after you increment 'k':

if (k > 2)
{
k = 0;
}

--
Jack Klein
Home: http://JK-Technology.Com
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alt.comp.lang.l earn.c-c++

http://www.contrib.andrew.cmu.edu/~ajo/docs/FAQ-acllc.html

[silverchrono@hotmail.com]

Re: Help needed Please!

this works it resets k to 0..however the loop ends there and
permanently sets k to 0..

it doesn't go from 0 to 2 again..

[Jaspreet]

Re: Help needed Please!


silverchrono@ho tmail.com wrote:[color=blue]
> this is my first semester in C
> and im trying to figure out how to reset a counter.
>
> heres why im trying to do.
>
> void text()
>
> 59 printf("You can end entering the text by using '#'\n");
> 60 int i=0;
> 61 int j=0;
> 62 int k=0;
> 63 while ((tx[i]=getchar())!='# ')
> 64 {
> 65 i++;
> 66 }
> 67
> 68 while(tx[j]!='\0')
> 69 {
> 70 putchar(tx[j]+cc[k]);[/color]

What doess cc mean ? You probably meant tx.
[color=blue]
> 74 k++; j++;
> //basically I want [j] to keep on counting until EOF a// no problem
> there
> //but i want k to count only from 0 to 2 then resets back to 0 again
> then 1 then 2, then resets to 0 again Until EOF...now i have a good
> reason why i want k to count from 0 to 2 only and resets to 0
>
> anyone have a clue on how to do this thx.[/color]

Jack's solution seems to be correct.
After line number 74:

if ( k > 2 )
{
k = 0;
}

[silverchrono@hotmail.com]

Re: Help needed Please!

OH thx that actually work..

all i did was

void text()
56 {
57
58 printf("Please Enter a Text for coding\n");
59 printf("You can end entering the text by using '#'\n");
60 int i=0;
61 int j=0;
62 int k=0;
63 while ((tx[i]=getchar())!='# ')
64 {
65 i++;
66 }
67
68 while(tx[j]!='\0')
69 {
70 k++;
71 putchar(tx[j]+cc[k]);
72 j++;
73 if (k>2)
74 k=0;
75 }
76 k++;
77 }

basicall add a k++ at the beggining and the end ..

thx for the help..this actually finish my my assignment..thx again..

[Jaspreet]

Re: Help needed Please!


silverchrono@ho tmail.com wrote:[color=blue]
> this is my first semester in C
> and im trying to figure out how to reset a counter.
>
> heres why im trying to do.
>
> void text()
>
> 59 printf("You can end entering the text by using '#'\n");
> 60 int i=0;
> 61 int j=0;
> 62 int k=0;
> 63 while ((tx[i]=getchar())!='# ')
> 64 {
> 65 i++;
> 66 }
> 67
> 68 while(tx[j]!='\0')
> 69 {
> 70 putchar(tx[j]+cc[k]);[/color]

What exactly is the correct line of code at line number 70 ?
[color=blue]
> 74 k++; j++;
> //basically I want [j] to keep on counting until EOF a// no problem
> there
> //but i want k to count only from 0 to 2 then resets back to 0 again
> then 1 then 2, then resets to 0 again Until EOF...now i have a good
> reason why i want k to count from 0 to 2 only and resets to 0
>
> anyone have a clue on how to do this thx.[/color]

[Nick Keighley]

Re: Help needed Please!

silverchrono@ho tmail.com wrote:

<snip>
[color=blue]
> void text()
> 56 {
> 57
> 58 printf("Please Enter a Text for coding\n");
> 59 printf("You can end entering the text by using '#'\n");
> 60 int i=0;
> 61 int j=0;
> 62 int k=0;
> 63 while ((tx[i]=getchar())!='# ')
> 64 {
> 65 i++;
> 66 }
> 67
> 68 while(tx[j]!='\0')
> 69 {
> 70 k++;
> 71 putchar(tx[j]+cc[k]);
> 72 j++;
> 73 if (k>2)
> 74 k=0;
> 75 }
> 76 k++;
> 77 }[/color]

<snip>

code is easier to read if its well laid out. Judicious use of blank
lines, whitespace and proper indentation all help

void text (void) /*** if no arguments void is good style */
{
printf("Please Enter a Text for coding\n");
printf("You can end entering the text by using '#'\n");
int i = 0; /*** in C you are not allowed declarations after
statements */
int j = 0;
int k = 0;

while ((tx[i] = getchar()) != '#')
{
i++;
}

while(tx[j] != '\0')
{
k++;
putchar (tx[j] + cc[k]);
j++;
if (k > 2)
k = 0;
}

k++;
}

in fact I would normally use more whitespace and write "tx[j]" as "tx
[j]"



--
Nick Keighley

[Pedro Graca]

Re: Help needed Please!

silverchrono@ho tmail.com wrote:[color=blue]
> but i want k to count only from 0 to 2 then resets back to 0 again
> then 1 then 2, then resets to 0 again Until EOF...now i have a good
> reason why i want k to count from 0 to 2 only and resets to 0[/color]

Another approach. Maybe a bit more cryptic but I like (don't know why,
though) to save variables ...

/* 62 */ /* int k=0; */

/* 68 */ while (tx[j] != '\0')
/* 69 */ {
/* 70 */ putchar(tx[j] + cc[j%3]);
/* 74 */ /* k++; */ j++;

--
If you're posting through Google read <http://cfaj.freeshell. org/google>

[stathis gotsis]

Re: Help needed Please!

"Nick Keighley" <nick_keighley_ nospam@hotmail. com> wrote in message
news:1141287530 .976285.140600@ e56g2000cwe.goo glegroups.com.. .[color=blue]
> silverchrono@ho tmail.com wrote:
>
> <snip>
>[color=green]
> > void text()
> > 56 {
> > 57
> > 58 printf("Please Enter a Text for coding\n");
> > 59 printf("You can end entering the text by using '#'\n");
> > 60 int i=0;
> > 61 int j=0;
> > 62 int k=0;
> > 63 while ((tx[i]=getchar())!='# ')
> > 64 {
> > 65 i++;
> > 66 }
> > 67
> > 68 while(tx[j]!='\0')
> > 69 {
> > 70 k++;
> > 71 putchar(tx[j]+cc[k]);
> > 72 j++;
> > 73 if (k>2)
> > 74 k=0;
> > 75 }
> > 76 k++;
> > 77 }[/color]
>
> <snip>
>
> code is easier to read if its well laid out. Judicious use of blank
> lines, whitespace and proper indentation all help[/color]

Thank you, now i can follow the code. I have some comments for the OP.
[color=blue]
> void text (void) /*** if no arguments void is good style */
> {
> printf("Please Enter a Text for coding\n");
> printf("You can end entering the text by using '#'\n");
> int i = 0; /*** in C you are not allowed declarations after
> statements */[/color]

That is not true for C99.
[color=blue]
> int j = 0;
> int k = 0;
>
> while ((tx[i] = getchar()) != '#')[/color]

EOF should be considered here.
[color=blue]
> {
> i++;
> }[/color]

There is a danger that tx[] may be overrun as there is no check for the
incrementing value of i. The string is not properly null-terminated, at
least not in the part of the code we are presented. One should use something
like:

tx[i]='\0';
[color=blue]
> while(tx[j] != '\0')[/color]

If the string was not null-terminated that worked out of pure lack. '#',
which is used to signal end of user input, is processed, even '\n', i do not
know if that is the OP's intention.
[color=blue]
> {
> k++;
> putchar (tx[j] + cc[k]);
> j++;
> if (k > 2)
> k = 0;
> }
>
> k++;
> }[/color]

[CBFalconer]

Re: Help needed Please!

Pedro Graca wrote:[color=blue]
> silverchrono@ho tmail.com wrote:
>[color=green]
>> but i want k to count only from 0 to 2 then resets back to 0 again
>> then 1 then 2, then resets to 0 again Until EOF...now i have a good
>> reason why i want k to count from 0 to 2 only and resets to 0[/color]
>
> Another approach. Maybe a bit more cryptic but I like (don't know
> why, though) to save variables ...[/color]

Piggybacking. If you want the range of k to be 0 through 2,
increment it with the statement:

k = (k + 1) % 3;

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