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make boolean functions return a boolean #3123

markus2330 opened this issue Oct 28, 2019 · 0 comments


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@markus2330 markus2330 commented Oct 28, 2019

As discussed in #3111 @kodebach proposes:

The return type isn't that important actually. The main point is that functions like keyIsBelow should only return 0 or 1 but never -1 to make it harder to use it wrongly in ifs. A boolean return type just makes it more obvious that this should be the case.

The fix for this actually quite easy, we would only need to define the "belowness" of null pointers (also in the docu). One way to define it, would be to always return false (0) if any null pointer is involved (so simply not distinguish API errors and below checks, i.e., map -1 to 0).

What do you think?

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