You are correct, there is no difference with C printf for these values.
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There is no floating point number which is exactly equal to either 0.05 or
0.15 so in your examples the simple "round to nearest" rule apply (no tie
implied).
Rémy.
Le 2 juil. 2017 9:15 AM, "Uli Kunitz" a écrit :
One could justify it, if the rounding rule is "rounding to nearest, ties to
even"
One could justify it, if the rounding rule is "rounding to nearest, ties to
even".
I find other behaviour more strange:
-0.5 is rounded to -0 with prec=0
-0.05 is rounded to -0.1 with prec=1
0.15 rounded to 0.1 with prec=1
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