On 1/23/07, Paweł Sikora <[EMAIL PROTECTED]> wrote:
typedef enum { X, Y } E;
int f( E e )
{
switch ( e )
{
case X: return -1;
case Y: return +1;
}
+ throw runtime_error("invalid value got shoehorned into E enum")
}
In this example g++ produces a warning:
e.cpp: In function 'int f(E)':
e.cpp:9: warning: control reaches end of non-void function
Adding `default' statemnet to `switch' removes the warning but
in C++ out-of-range values in enums are undefined.
nevertheless, that integer type might get its bits twiddled somehow.
