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Explain the epicsCalcTest #66 failure on Linux.

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Andrew Johnson
2009-08-07 21:26:47 +00:00
parent b1b72e8cf0
commit 6d8cfeef01
1 changed files with 9 additions and 2 deletions
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11
documentation/KnownProblems.html
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@@ -4,14 +4,21 @@
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Known Problems R3.14.11-RC1</title>
<title>Known Problems in R3.14.11</title>
</head>
<body>
<h1 style="text-align: center">EPICS Base R3.14.11: Known Problems</h1>
<ul>
<li></li>
<li>The libCom test suite program epicsCalcTest test #66 fails on some linux
systems. This is not a bug in EPICS and will not be fixed; it actually
demonstrates that the GCC optimizer is not generating the same result for
the expression <tt>isinf(-Inf)</tt> that the glibc function returns at
runtime. Both versions return a non-zero result for infinite arguments, but
the GCC optimized version applies the sign of its infinite argument to its
return value, whereas glibc always returns +1.</li>
</ul>