1// RUN: %check_clang_tidy %s hicpp-signed-bitwise %t -- \
2// RUN: -config="{CheckOptions: {hicpp-signed-bitwise.IgnorePositiveIntegerLiterals: true}}" \
3// RUN: -- -std=c++11
4
5void examples() {
6 unsigned UValue = 40u;
7 unsigned URes;
8
9 URes = UValue & 1u; //Ok
10 URes = UValue & -1;
11 // CHECK-MESSAGES: :[[@LINE-1]]:19: warning: use of a signed integer operand with a binary bitwise operator
12
13 unsigned URes2 = URes << 1; //Ok
14 unsigned URes3 = URes & 1; //Ok
15
16 int IResult;
17 IResult = 10 & 2; //Ok
18 IResult = 3 << -1;
19 // CHECK-MESSAGES: :[[@LINE-1]]:18: warning: use of a signed integer operand with a binary bitwise operator
20
21 int Int = 30;
22 IResult = Int << 1;
23 // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: use of a signed integer operand with a binary bitwise operator
24 IResult = ~0; //Ok
25 IResult = -1 & 1;
26 // CHECK-MESSAGES: :[[@LINE-1]]:13: warning: use of a signed integer operand with a binary bitwise operator [hicpp-signed-bitwise]
27}
28
29enum EnumConstruction {
30 one = 1,
31 two = 2,
32 test1 = 1 << 12, //Ok
33 test2 = one << two,
34 // CHECK-MESSAGES: :[[@LINE-1]]:11: warning: use of a signed integer operand with a binary bitwise operator
35 test3 = 1u << 12, //Ok
36};
37

source code of clang-tools-extra/test/clang-tidy/checkers/hicpp/signed-bitwise-integer-literals.cpp