Default values in RobinHoodMap lead to unexpected results

[sebhofer]

The following test fails. It's adapted from the Faster.Map test suite by simply changing the value that is being looked up from 4 to 0:

        [Fact]
        public void Contains_NonExistingKey_ReturnsFalse()
        {
            // Arrange
            var map = new RobinhoodMap<int, string>();
            map.Emplace(1, "One");
            map.Emplace(2, "Two");
            map.Emplace(3, "Three");

            // Act
            bool result = map.Contains(0);

            // Assert
            Assert.False(result);
        }

As far as I can tell the underlying storage array is initialized with 0 as a key (for integer keys), which leads to spurious hits, and consequently to null exceptions.

[Wsm2110]

Thnx for reporting this. Will look into it.