elispop122003 wrote On 2008-10-29 10:37 +0800:
> this is what I have so far
>
> #include <iostream>
> #include <string>
> #include "aStack.h"
> #include "AQueue.h"
>
> using namespace std;
>
> bool match(char, char);
> bool isValid(char);
>
> int main(){
> char ch;
> char chL, chR;
> aStack S;
> AQueue A;
> int count = 0;
> bool err = false;
>
> while((ch=cin.get())!= EOF){
> cout << ch; //Echo back data
> if(ch!= '\n')
> {
> if(!isValid(ch))
> {
> ch = "";
"" indicated a string with only one element '\0' and prototype of *ch* is
*char*. then compile error occurs
u may try this: ch = 0x0;
correct me if i'm wrong
regards
tomas
> S.push(ch);
> A.Enqueue(ch);
> }
> else
> {
> S.push(ch);
> A.Enqueue(ch);
> count++;
> }
> }
>
> while(count > 0)
> {
> S.pop(chL);
> A.Dequeue(chR);
> count--;
> if(!match(chL, chR))
> err = true;
> }
> if(err == true)
> cout << "Not a valid pack palindrome." << endl;
> else
> {
> cout << "Palindrome is valid" << endl;
> err = false;
> }
> }
> return 0;
> }
>
> bool match(char chL, char chR){
> if(chL == chR)
> return true;
> else
> return false;
> }
>
> bool isValid(char ch){
> if((ch>= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z'))
> return true;
> else
> return false;
> }
>
> My problem comes when I try to get rid of the punctuation. I get this
> error:
> project3.cpp:29: error: invalid conversion from 'const char*' to
> 'char'
> If someone could help me I would greatly appreciate it.
>
>
> --- In [email protected], Rajath N R <[EMAIL PROTECTED]> wrote:
>> Hi,
>> check this pice of code
>>
>>
>> [EMAIL PROTECTED] ~]$ cat test.c
>>
>> #include <stdio.h>
>>
>> #define PALINDROME 0
>> #define NOT_PALINDROME 1
>>
>> main()
>> {
>> char buff[512];
>>
>> printf("Enter a string: ");
>> scanf("%s", buff);
>>
>> if (palindrome(buff) == PALINDROME) {
>> printf("String is palindrome\n");
>> }
>> else {
>> printf("String is not a palindrome\n");
>> }
>>
>> }
>> int palindrome(char *ptr)
>> {
>> int strbeg = 0, strend = 0;
>>
>> strend = strlen(ptr) - 1;
>> while ( strbeg == strend || strbeg < strend) {
>> if (ptr[strbeg] != ptr[strend])
>> return (NOT_PALINDROME);
>>
>> strbeg++;
>> strend--;
>> }
>> return (PALINDROME);
>> }
>>
>>
>> Thanks & Regards,
>>
>> Rajath N R
