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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>hidden flag</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../H.html" title="H"/><link rel="previous" href="HHOS.html" title="HHOS"/><link rel="next" href="high-bit.html" title="high bit"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">hidden flag</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="HHOS.html">Prev</a> </td><th width="60%" align="center">H</th><td width="20%" align="right"> <a accesskey="n" href="high-bit.html">Next</a></td></tr></table><hr/></div><dt><a id="hidden-flag"/><dt xmlns="" id="hidden-flag"><b>hidden flag</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> [scientific computation] An extra option added to a routine without
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changing the calling sequence. For example, instead of adding an explicit
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input variable to instruct a routine to give extra diagnostic output, the
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programmer might just add a test for some otherwise meaningless feature of
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the existing inputs, such as a negative mass. The use of hidden flags can
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make a program very hard to debug and understand, but is all too common
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wherever programs are hacked on in a hurry.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="HHOS.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../H.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="high-bit.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">HHOS </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> high bit</td></tr></table></div></body></html>
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