Thread: wow no error....except this

  1. #1
    Registered User caroundw5h's Avatar
    Join Date
    Oct 2003

    wow no error....except this

    So code compiles fine, but it doesn't print anything, what am i doing wrong. I haven't delved into strings yet.

    Thank you
    /* backWORDS.c prints a user inputed string backwards */
    #include <stdio.h>
    #include <string.h>
    #include <stdlib.h>
    int main(void)
       int count;
       char word[BUFSIZ];
       /* caputure word */
       printf("Enter a word\n");
       /* print word backwards */
       for (count = '\0' /*strlen(word) -1*/ ; count >= word[0]; count--){
          printf("%c", word[count]);
      return (0);
    Last edited by caroundw5h; 01-05-2004 at 01:02 AM.

  2. #2
    Been here, done that.
    Join Date
    May 2003

    Re: wow no error....except this


    for (count = strlen(word) -1 ; count >= 0; count--)
    Definition: Politics -- Latin, from
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  3. #3
    and the hat of int overfl Salem's Avatar
    Join Date
    Aug 2001
    The edge of the known universe
    > gets(word);
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  4. #4
    Registered User
    Join Date
    Dec 2003
    for (count = '\0' /*strlen(word) -1*/ ; count >= word[0]; count--)
    Why are you initializing the variable "count" to the NULL character? In ASCII that's 0.. and if you count backwards with your "count--" your test string "count >= word[0]" will never logically be true.. so your for loop doesn't do anything.

    I'm no expert on this but I believe that's your problem.

  5. #5
    Registered User caroundw5h's Avatar
    Join Date
    Oct 2003
    Thank you for your reply. A more indepth study of Strings would help out and to remeber that in C everything is pretty much an integer value.

    I assumed the value of '\0' would mean the end of the string, and that I could count from there backwards. Obviously that is not the case. That is why i had strlen as well. Thank you for you help.

    salem: I'm getting to fgets, soon.

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