`A15-4-2`: Ignore elided calls when calculating the exception graph
@lcartey 已經在處理了。
開始於 2024年1月14日。
評估
這個 Issue 還沒有評估資料。
描述
Affected rules
A15-4-2
Description
Copy elision allows the compiler to omit copy and move construction in certain circumstances. Some of these circumstances are considered "mandatory" - i.e. the compiler must omit the explicit construction - and in those circumstances copy and move constructors may never be called.
If you have move/copy constructors which are never expected to be called because they are always elided, you may decide to throw an exception from the copy/move constructor to enforce that it is only used in circumstances where the elision occurs. As our call graph does not currently reflect the mandatory elision of functions, this can cause false positives.
Example
// `foo` is only used in circumstances where it is elided, so this exception is never thrown in practice
constexpr foo(const foo&) : dummy() {
throw some_bad_exception();
};
- 主要語言
- CodeQL
- 星號
- 227
- 分支
- 82
- 平均合併
- 6 天 7 小時
- 30 天內合併 PR
- 9
貢獻指南
從這裡開始
- 先讀完整個 Issue，再讀專案的貢獻指南。
- 在 Issue 下留言說明你要接手 —— 這能避免兩個人做同樣的事。
- Fork 儲存庫，在一個分支上完成修改。
- 送出 Pull Request，並在描述裡引用這個 Issue 編號。
github/codeql-coding-standards 的其他 Issue
-
false positive/false negative Stardard-MISRA-C++
難度 2/5 1-3 小時 新手友好度 72/100
github/codeql-coding-standards#1172 ·
-
Difficulty-Low false positive/false negative false-negative Impact-Low Standard-MISRA-C
難度 2/5 1-3 小時 新手友好度 68/100
-
Difficulty-Medium false positive/false negative false-positive Impact-Medium Standard-CERT-C
難度 4/5 3-5 天 新手友好度 48/100
github/codeql-coding-standards#1200 ·
-
`RULE-0-0-1`: "unreachable statement" false positives due to over-pruning of the control-flow graph 未關閉false positive/false negative
難度 4/5 3-5 天 新手友好度 48/100
github/codeql-coding-standards#1190 ·
-
false positive/false negative
難度 3/5 1-2 天 新手友好度 65/100
github/codeql-coding-standards#1175 ·