Re: Deterministic functions
alvaro.segura.SPAMFREE@gmail.com (Alvaro Segura) wrote (abridged):
I propose to have a special keyword to mark functions that will return
the same value if the same arguments are given AND if only functions of
a special kind (probably const) are called on the object.
class Container {
public:
int size() const deterministic;
Item& getAt(index i) const deterministic;
void add(Item item);
};
How would you deal with aliasing?
static Container container;
void proc( const Container &c ) {
for (int i = 0; i < c.size(); ++i)
container.add( c.getAt(i) );
}
Should the compiler assume that c is not a reference to container? Or must
it suppress the optimisation? Or is this undefined behaviour?
-- Dave Harris, Nottingham, UK.
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