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History of Idiom 81 > diff from v47 to v48

Edit summary for version 48 by programming-idioms.org:
[Haskell] Revert bug (think x=0.3)

Version 47

2018-04-17, 23:42:03

Version 48

2018-04-23, 23:18:50

Idiom #81 Round floating point number to integer

Declare integer y and initialize it with the rounded value of floating point number x .
Ties (when the fractional part of x is exactly .5) must be rounded up (to positive infinity).

Idiom #81 Round floating point number to integer

Declare integer y and initialize it with the rounded value of floating point number x .
Ties (when the fractional part of x is exactly .5) must be rounded up (to positive infinity).

Code
y = round (x + 1/2)
Code
y = floor (x + 1/2)
Comments bubble
Haskell would round half-ties towards nearest ∈ℤ2 rather than towards +∞
Comments bubble
Haskell would round half-ties towards nearest ∈ℤ2 rather than towards +∞
Doc URL
http://hackage.haskell.org/package/base/docs/Prelude.html#v:floor
Doc URL
http://hackage.haskell.org/package/base/docs/Prelude.html#v:floor