Pointers not allowed to used iostream

[ZakAttk1]

I want to infinitely print a saying to the console but I am not allowed to used iostream.

I am using the function putc. I understand I need to use an infinite loop. So far I have:

int main()
{
char *word;
word = &SAYING[0];

while(true)
{
putc(*word, stdout);
word ++;
putc(*word, stdout);


}


return 0;


However, it only prints the first 2 characters. I need to somehow write some code that automatically prints the saying without having to repeat:

word ++;
putc(*word, stdout);



any advice on how to get started on the rest?
Thanks.

 

[chroot]

If you just increment the "word" pointer forever, you'll go past the end of the string and begin printing out random garbage. Your program will eventually crash.

You need to detect that you've reached the end of the string (it will end with a null byte), and go back to the beginning.

- Warren

 

[ZakAttk1]

So to mark the end of the string I'll have to do something with *word = '\0'.
Is that relevant?

 

[rcgldr]

I'm guessing that "true" isn't defined, and you compiler is defaulting it to 0, which keeps the while loop from running. Try while(1), or better still while(*word != 0), and only use one instance of putc(*word), word++.

 

[mathmate]

If you want to print the sentence forever, you will need two while loops, one that repeatedly prints the same line, another detects the end of the sentence and go back to print the beginning.
The pseudocode looks like the following:
char saying[]="...";
char *ptr;
while(true)
{
ptr=saying; // starts printing line
while(*ptr!=end-of-string){putc(...); ptr++;}
} // end of line, go back to pring another line