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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 | // SPDX-License-Identifier: GPL-2.0-only /// Bool initializations should use true and false. Bool tests don't need /// comparisons. Based on contributions from Joe Perches, Rusty Russell /// and Bruce W Allan. /// // Confidence: High // Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. // Copyright: (C) 2012 Gilles Muller, INRIA/LiP6. // URL: http://coccinelle.lip6.fr/ // Options: --include-headers virtual patch virtual context virtual org virtual report @boolok@ symbol true,false; @@ ( true | false ) @depends on patch@ bool t; @@ ( - t == true + t | - true == t + t | - t != true + !t | - true != t + !t | - t == false + !t | - false == t + !t | - t != false + t | - false != t + t ) @depends on patch disable is_zero, isnt_zero@ bool t; @@ ( - t == 1 + t | - t != 1 + !t | - t == 0 + !t | - t != 0 + t ) @depends on patch && boolok@ bool b; @@ ( b = - 0 + false | b = - 1 + true ) // --------------------------------------------------------------------- @r1 depends on !patch@ bool t; position p; @@ ( * t@p == true | * true == t@p | * t@p != true | * true != t@p | * t@p == false | * false == t@p | * t@p != false | * false != t@p ) @r2 depends on !patch disable is_zero, isnt_zero@ bool t; position p; @@ ( * t@p == 1 | * t@p != 1 | * t@p == 0 | * t@p != 0 ) @r3 depends on !patch && boolok@ bool b; position p1; @@ ( *b@p1 = 0 | *b@p1 = 1 ) @r4 depends on !patch@ bool b; position p2; identifier i; constant c != {0,1}; @@ ( b = i | *b@p2 = c ) @script:python depends on org@ p << r1.p; @@ cocci.print_main("WARNING: Comparison to bool",p) @script:python depends on org@ p << r2.p; @@ cocci.print_main("WARNING: Comparison of 0/1 to bool variable",p) @script:python depends on org@ p1 << r3.p1; @@ cocci.print_main("WARNING: Assignment of 0/1 to bool variable",p1) @script:python depends on org@ p2 << r4.p2; @@ cocci.print_main("ERROR: Assignment of non-0/1 constant to bool variable",p2) @script:python depends on report@ p << r1.p; @@ coccilib.report.print_report(p[0],"WARNING: Comparison to bool") @script:python depends on report@ p << r2.p; @@ coccilib.report.print_report(p[0],"WARNING: Comparison of 0/1 to bool variable") @script:python depends on report@ p1 << r3.p1; @@ coccilib.report.print_report(p1[0],"WARNING: Assignment of 0/1 to bool variable") @script:python depends on report@ p2 << r4.p2; @@ coccilib.report.print_report(p2[0],"ERROR: Assignment of non-0/1 constant to bool variable") |