[Bug 1000498] Re: fmod() incorrectly returns NaN for (some?) denormalized inputs

[Adam Conrad]

** Changed in: eglibc (Ubuntu Quantal)
       Status: In Progress => Fix Committed

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https://bugs.launchpad.net/bugs/1000498

Title:
  fmod() incorrectly returns NaN for (some?) denormalized inputs

Status in Embedded GLIBC:
  Fix Released
Status in “eglibc” package in Ubuntu:
  Fix Committed
Status in “eglibc” source package in Precise:
  In Progress
Status in “eglibc” source package in Quantal:
  Fix Committed

Bug description:
  [Impact]
  When using fmod, some inputs will cause incorrect results.

  [Fix]
  An upstream eglibc patch (c5bfe3d5ba29d36563f1e4bd4f8d7336093ee6fc) fixes this particular issue.

  [Test Case]
  See comment https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1000498/comments/1 for a C program that exhibits this issue.

  [Regression Potential]
  This adds the fixes for fmod and adds the appropriate test cases in eglibc.

  [Original Report]
  See http://sourceware.org/bugzilla/show_bug.cgi?id=14048.

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