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