| /// Check for constants that are added but are used elsewhere as bitmasks | |
| /// The results should be checked manually to ensure that the nonzero | |
| /// bits in the two constants are actually disjoint. | |
| /// | |
| // Confidence: Moderate | |
| // Copyright: (C) 2013 Julia Lawall, INRIA/LIP6. GPLv2. | |
| // Copyright: (C) 2013 Gilles Muller, INRIA/LIP6. GPLv2. | |
| // URL: http://coccinelle.lip6.fr/ | |
| // Comments: | |
| // Options: --no-includes --include-headers | |
| virtual org | |
| virtual report | |
| virtual context | |
| @r@ | |
| constant c; | |
| identifier i; | |
| expression e; | |
| @@ | |
| ( | |
| e | c@i | |
| | | |
| e & c@i | |
| | | |
| e |= c@i | |
| | | |
| e &= c@i | |
| ) | |
| @s@ | |
| constant r.c,c1; | |
| identifier i1; | |
| position p; | |
| @@ | |
| ( | |
| c1 + c - 1 | |
| | | |
| *c1@i1 +@p c | |
| ) | |
| @script:python depends on org@ | |
| p << s.p; | |
| @@ | |
| cocci.print_main("sum of probable bitmasks, consider |",p) | |
| @script:python depends on report@ | |
| p << s.p; | |
| @@ | |
| msg = "WARNING: sum of probable bitmasks, consider |" | |
| coccilib.report.print_report(p[0],msg) |