| 1 | // RUN: %check_clang_tidy %s bugprone-unused-return-value %t \ |
|---|
| 2 | // RUN: -config='{CheckOptions: \ |
|---|
| 3 | // RUN: {bugprone-unused-return-value.CheckedFunctions: "::*"}}' \ |
|---|
| 4 | // RUN: -- |
|---|
| 5 | |
|---|
| 6 | struct S1 { |
|---|
| 7 | S1(){}; |
|---|
| 8 | S1(S1 const &); |
|---|
| 9 | S1(S1 &&); |
|---|
| 10 | S1 &operator=(S1 const &); |
|---|
| 11 | S1 &operator=(S1 &&); |
|---|
| 12 | S1 &operator+=(S1); |
|---|
| 13 | S1 &operator++(); |
|---|
| 14 | S1 &operator++(int); |
|---|
| 15 | S1 &operator--(); |
|---|
| 16 | S1 &operator--(int); |
|---|
| 17 | }; |
|---|
| 18 | |
|---|
| 19 | struct S2 { |
|---|
| 20 | S2(){}; |
|---|
| 21 | S2(S2 const &); |
|---|
| 22 | S2(S2 &&); |
|---|
| 23 | }; |
|---|
| 24 | |
|---|
| 25 | S2 &operator-=(S2&, int); |
|---|
| 26 | S2 &operator++(S2 &); |
|---|
| 27 | S2 &operator++(S2 &, int); |
|---|
| 28 | |
|---|
| 29 | S1 returnValue(); |
|---|
| 30 | S1 const &returnRef(); |
|---|
| 31 | |
|---|
| 32 | void bar() { |
|---|
| 33 | returnValue(); |
|---|
| 34 | // CHECK-MESSAGES: [[@LINE-1]]:3: warning: the value returned by this function should not be disregarded; neglecting it may lead to errors |
|---|
| 35 | |
|---|
| 36 | S1 a{}; |
|---|
| 37 | a = returnValue(); |
|---|
| 38 | a.operator=(returnValue()); |
|---|
| 39 | |
|---|
| 40 | a = returnRef(); |
|---|
| 41 | a.operator=(returnRef()); |
|---|
| 42 | |
|---|
| 43 | a += returnRef(); |
|---|
| 44 | |
|---|
| 45 | a++; |
|---|
| 46 | ++a; |
|---|
| 47 | a--; |
|---|
| 48 | --a; |
|---|
| 49 | |
|---|
| 50 | S2 b{}; |
|---|
| 51 | |
|---|
| 52 | b -= 1; |
|---|
| 53 | b++; |
|---|
| 54 | ++b; |
|---|
| 55 | } |
|---|
| 56 | |
|---|
