Due to the fix for #1248, X and Y probe offsets must not be floats.

[vandarin]

The compiler does not support comparing float values: "error: floating constant in preprocessor expression"
The loss in X/Y precision won't matter for Z probes, as most microswitches or inductive sensors are larger than 1mm square anyway.

[a0s]

This is not fix for problem, only trying to mask it :)

[vandarin]

Agreed, it's not a true fix, but the sanity check @alexborro added is a good thing and we should give people a clue that floats won't work for the offsets.

[alexborro]

Why not work?? It used to work so far...

2015-01-02 11:15 GMT-02:00 Lane Roberts notifications@github.com:

Agreed, it's not a true fix, but the sanity check @alexborro
https://github.com/alexborro added is a good thing and we should give
people a clue that floats won't work for the offsets.

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"Não é o mais forte da espécie que sobrevive, nem o mais inteligente. É
aquele que se adapta melhor as mudanças" ( Charles Darwin )

Alex Borro

[nophead]

@alexborro,
The reason was given by @vandarin. The constants are used in a #if statement and the C preprocessor does not allow floating point constants to be compared, only integers. I don't know how it could have worked before unless the #if is a recent addition.