> 64-42 = 22 I think they knew that. Their point was probably that it's better for code to directly express the requirements rather than meet the requirements

> 64-42 = 22 I think they knew that. Their point was probably that it's better for code to directly express the requirements rather than meet the requirements through the expression of other data that isn't immediately obvious to be related at a glance. In this case, it isn't obvious that the 22 is related to the 42 in the requirements until you notice that the int size is 64. `snowflake >> ((sizeof snowflake) * 8 - 42)` is better. Even better would be putting the 42 in a descriptive constant.