** Tags added: 12.04-lts calc ceiling even floor functions int
libreoffice odd rounddown roundup trunc

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https://bugs.launchpad.net/bugs/1261048

Title:
  Wrong results from rounding functions for large argument

Status in “libreoffice” package in Ubuntu:
  New

Bug description:
  I am using Ubuntu 12.04.3 LTS and within that LibreOffice 3.5.7.2,
  Build ID: 350m1(Build:2). This report concerns LibreOffice Calc;
  functions roundup, rounddown, trunc, ceiling, floor, int, even and
  odd.

  Let y=power(2,50)+1 and please note that all integers up to
  power(2,53) are exactly representable. Therefore I expect that
  rounding y to integer will return y exactly, for any of the functions
  roundup, rounddown, trunc, ceiling, floor and int. I also expect that
  even(y)=y+1 and odd(y)=y.

  Actual results: functions roundup(y,0), rounddown(y,0), trunc(y,0),
  ceiling(y,1), floor(y,1) and int(y) all return y+5. Moreover,
  even(y)=y and odd(y)=y+6 according to Calc.

  (Note that the second argument to roundup, rounddown and trunc
  indicates number of places behind the decimal symbol and the second
  argument to ceiling and floor indicates the unit.)

  There are similar problems with these rounding functions when rounding
  to some number (>0) of places behind the decimal symbol.

  I have placed a *.ods spreadsheet that shows the issues in two places
  for public access:

  https://drive.google.com/file/d/0B36cHU4sR7HmS25tcXh5WTg1Q1U/edit?usp=sharing
  https://www.dropbox.com/s/uy0hzgginny4fuc/LibreOfficeRoundingIssues.ods

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