On Wednesday, 19 February 2014 at 14:14:01 UTC, Ary Borenszweig
wrote:
On 2/19/14, 6:42 AM, Daniel Murphy wrote:
"Steven Schveighoffer" wrote in message
news:[email protected]...
It may not be mindless. Most people who want to handle the
default
case do it. It's usually not so much "I didn't think of
handling other
values," it's more "I never expect other values to come in,
go away
annoying compiler error."
So why not put an assert(0) in instead of a break? Tell the
compiler
that you're assuming there are no other possible values. This
is
obviously the right thing to do here, and even if you ignore
it the
compiler _is_ trying to help you.
Sometimes you don't care about other values, which is different
than not expecting other values. For example:
auto a = ...;
switch(a) {
case 1: a += 1;
case 2: a += 2;
// In other cases, leave "a" as is
}
Just put default: break instead of that comment, it's shorter
that way:P
