public int Sum(Stck<int> stack) =>
map( pop(stack), (newstack, option) =>
match(option,
Some: value => value + Sum(newstack),
None: () => 0
)
);
public void Popping5(Stck<int> test)
{
test = map(trypop(test), (stack, value) => { Assert.True(value.IsSome); return stack; });
test = map(trypop(test), (stack, value) => { Assert.True(value.IsSome); return stack; });
test = map(trypop(test), (stack, value) => { Assert.True(value.IsSome); return stack; });
test = map(trypop(test), (stack, value) => { Assert.True(value.IsSome); return stack; });
peek(test,
Some: v => Assert.True(v == 1),
None: () => Assert.False(true)
);
}
public int Sum(Stck<int> stack) =>
pop(stack,
Some: (newstack, value) => value + Sum(newstack),
None: () => 0
);
public Task <int> GetHashCodeAsync(Stck <A> x) => GetHashCode(x).AsTask();
public Task <bool> EqualsAsync(Stck <A> x, Stck <A> y) => Equals(x, y).AsTask();
public int GetHashCode(Stck <A> x) => default(HashableStck <EQ, A>).GetHashCode(x);
