2010-10-25 05:37:32 +08:00
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/// Find bit operations that include the same argument more than once
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//# One source of false positives is when the argument performs a side
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//# effect. Another source of false positives is when a neutral value
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//# such as 0 for | is used to indicate no information, to maintain the
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//# same structure as other similar expressions
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///
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// Confidence: Moderate
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// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
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// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
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// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
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// URL: http://coccinelle.lip6.fr/
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// Comments:
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2013-06-20 19:10:56 +08:00
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// Options: --no-includes --include-headers
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2010-10-25 05:37:32 +08:00
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virtual context
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virtual org
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virtual report
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@r expression@
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expression E;
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position p;
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@@
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(
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* E@p
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& ... & E
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* E@p
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| ... | E
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* E@p
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& ... & !E
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* E@p
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| ... | !E
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* !E@p
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& ... & E
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* !E@p
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| ... | E
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)
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@script:python depends on org@
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p << r.p;
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@@
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cocci.print_main("duplicated argument to & or |",p)
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@script:python depends on report@
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p << r.p;
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@@
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coccilib.report.print_report(p[0],"duplicated argument to & or |")
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