Re: argc loop [tlug]

[Jim <jep200404@example.com>]

"Stephen" wrote:

> Jim writes:

>  > Also tolerable, but less readable, would be: 
>  > 
>  >     while (*argv++!=(char *)0)

> If you insist on accessing the argv array, the correct idiom is
> 
>     do { ... } while (*argv++ != NULL);

When argc is zero, the former code "does nothing gracefully", 
while the latter code requires another test inside the loop 
to avoid dereferencing a null pointer.