freeform swich case

by freeform i thought something like
totally separate the function of switch and
teh function of case amd understand
it sepratelley
swich(a) menas something like select a (for later comparsions)
(though its not clear if it should select value or select
variable at this moment)
case(4) means coempare selected tith argument and
work like if
do
int a = rand()%10;
switch(a);
case(1) {}
case(2) {}
case(3) {}
case(4) {}
case(5) {}
is understood
but the question is the details, like mentioned
if select by value or by variable
switch(a);
case(1) {a++;}
case(2) {}
a--;
case(3) {a+=6;}
case(4) {}
case(5) {}
as it will work different then
such free form is somewhat low lewel than the normal
switch case imo..it also has no break but what it could
be seem if swich selects by value then probably break
is not needed as the other cases could be optimised
away (though  maybe not fully..) if switch is by variable
then maybe less
overally this switch is a mess but it seem to me that this kind
of free form  is better that the swich in c (though im not fully sure also)