> > + dst_exten[0] = '\0';
>
> Is this 'construct' prefered over
>
> dst_exten[0] = 0;
> or
> *dst_exten = 0;
>
> and why?
I'm somewhat of a C pedant here. dst_exten is declared as an array,
not a pointer. So if I want to clear the first byte of the array,
I'll use array syntax pretty consistently. If it's a pointer, I tend
to prefer the pointer syntax, unless I'm also doing something with
other than the first byte. So I wouldn't write:
*x = 'a';
x[1] = '\0';
but instead
x[0] = 'a';
x[1] = '\0';
And I certainly don't like using 0 when I mean "the null character",
at least not in an assignment.
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