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History of Idiom 81 > diff from v38 to v39

Edit summary for version 39 by steenslag:
[Ruby] "round" rounds away from zero
↷

Version 38

2017-10-16, 09:35:31

Version 39

2017-10-18, 23:06:48

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 = x.round
Code 
y = (x + 1/2r).floor
Comments bubble
BUG: this rounds -0.5 to -1 instead of 1.
Doc URL
http://ruby-doc.org/core-2.2.3/Float.html#method-i-round
Demo URL
https://repl.it/EWcu/1