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Palindrome checker takes input from a file or keyboard, and lists out all palindrome words. This checker identifies even multiple words which are palindrome. This is a console based program, without arguments to the program, will act as a console shell, which takes input from keyboard and processes the words.

Recursive string reversal function is used to reverse the strings while checking for palindrome. Here is the function which identify whether a string is palindrome or not.

 

boolean checking_str_palindrome(const char *str)
{
  int pal_flag = FALSE;
  char *dest_str = (char *) malloc(sizeof(char) * (strlen(str) + 1));
 
  if (dest_str == NULL)
  {
    /*we are out of memory*/
    return FALSE;
  }
 
  memset(dest_str, 0x00, strlen(str));
  string_reverse(str, dest_str);
  dest_str[strlen(str)] ='\0';
  if(!strcmp(str, dest_str))
  {
    pal_flag = TRUE;
  }
 
  free(dest_str);
 
  return pal_flag;
}

Here is the entire [program]….

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This entry was written by ponnada and posted on February 20, 2007 at 12:18 pm and filed under C Tidbits, OpenSource. Bookmark the permalink. Follow any comments here with the RSS feed for this post. Post a comment or leave a trackback: Trackback URL.