APU_DECLARE(apr_bucket *) apr_bucket_socket_create(apr_socket_t *p) { do { [...] return ap__b; } while(0); }
So the final While(0); is definately unreachable. No compiler error.
My only question, why do {} while(0); rather than {} ?
As Cliff said:
(to allow the macro user to place a semicolon after the macro invocation without causing a syntax error)
If the user did this:
if(condition)
MACRO(params);
else
MACRO(params);Using {} would expand to this:
if(condition)
{
}
;
else
{
}
;while the other form expands to this
if(condition)
do {
} while(0);
else
do {
} while(0);which is fine.
Of course, it doesn't matter if the condition is always enclosed in braces, but the compiler won't enforce that, and you can end up with error messages that don't make sense if you don't include the braces.
-- Greg Marr [EMAIL PROTECTED] "We thought you were dead." "I was, but I'm better now." - Sheridan, "The Summoning"
