...
Do
...
not
...
write
...
any
...
executable
...
statement
...
inside
...
a
...
switch
...
loop
...
before
...
the
...
first
...
case
...
statement.
...
The
...
statements
...
will
...
never
...
get
...
executed,
...
as
...
the
...
compiler
...
will
...
ignore
...
the
...
statements
...
present
...
before
...
the
...
first
...
case
...
statement
...
inside
...
the
...
switch
...
block.
...
The
...
compiler
...
will
...
compile
...
the
...
above
...
statements,
...
but
...
while
...
generating
...
assembly
...
for
...
the
...
switch
...
loop,
...
those
...
statements
...
will
...
be
...
ignored.
...
If
...
a
...
programmer
...
declares
...
variables
...
and
...
initializes
...
them
...
before
...
the
...
first
...
case
...
statement
...
and
...
try
...
to
...
use
...
them
...
inside
...
any
...
of
...
the
...
case
...
statements,
...
those
...
variables
...
will
...
have
...
scope
...
inside
...
the
...
switch
...
block,
...
but
...
their
...
value
...
will
...
be
...
taken
...
garbage.
...
Any
...
unexpected
...
result
...
can
...
follow
...
because
...
of
...
the
...
above
...
behavior.
...
Non
...
Compliant
...
Code:
...
In
...
the
...
example
...
mentioned
...
below,
...
the
...
variable
...
i
...
will
...
be
...
instantiated
...
with
...
automatic
...
storage
...
duration
...
within
...
the
...
block,
...
but
...
it’s
...
never
...
initialized.
...
Thus,
...
if
...
the
...
controlling
...
expression
...
has
...
a
...
non-zero
...
value,
...
the
...
cause
...
to
...
printf
...
will
...
access
...
an
...
indeterminate
...
value
...
of
...
i.
...
Similarly,
...
the
...
call
...
to
...
function
...
will
...
also
...
never
...
get
...
executed.
| Warning | ||||
|---|---|---|---|---|
|