php.net |  support |  documentation |  report a bug |  advanced search |  search howto |  statistics |  random bug |  login

go to bug id or search bugs for

Bug #32305 ceil returns unexpected results
Submitted: 2005-03-15 05:16 UTC Modified: 2005-03-15 06:03 UTC
From: webmaster at ew3d dot com Assigned:
Status: Not a bug Package: Math related
PHP Version: 4.3.9 OS: CentOS 4.0
Private report: No CVE-ID: None
View Add Comment Developer Edit
Welcome back! If you're the original bug submitter, here's where you can edit the bug or add additional notes.
If this is not your bug, you can add a comment by following this link.
If this is your bug, but you forgot your password, you can retrieve your password here.
Password:
Status:
Package:
Bug Type:
Summary:
From: webmaster at ew3d dot com
New email:
PHP Version: OS:

 

 [2005-03-15 05:16 UTC] webmaster at ew3d dot com 
Description:
------------
I'm running the current RHEL rpm php 4.3.9 i386.






Reproduce code:
---------------
printf(ceil(0.05*100)/100); //Returns 0.05
printf(ceil(0.06*100)/100); //Returns 0.06
printf(ceil(0.07*100)/100); //Returns 0.08 <-- Wrong
printf(ceil(7));            //Returns 7
printf(ceil(0.08*100)/100); //Returns 0.08
printf(ceil(0.14*100)/100); //Returns 0.15 <-- Wrong
printf(ceil(0.21*100)/100); //Returns 0.21

Expected result:
----------------
0.05
0.06
0.07
7
0.08
0.14
0.21

Actual result:
--------------
0.05
0.06
0.08
7
0.08
0.15
0.21

Patches

Add a Patch

Pull Requests

Add a Pull Request

History

AllCommentsChangesGit/SVN commitsRelated reports
 [2005-03-15 06:03 UTC] rasmus@php.net 
Please read:

http://php.net/manual/en/language.types.float.php

You are magnifying floating point errors.  No bug here.
 
PHP Copyright © 2001-2024 The PHP Group
All rights reserved. 		Last updated: Fri Apr 26 04:01:30 2024 UTC