常量返回类型¶
ID: cpp/non-member-const-no-effect
Kind: problem
Security severity:
Severity: warning
Precision: very-high
Tags:
- maintainability
- readability
- language-features
Query suites:
- cpp-security-and-quality.qls
此规则查找返回类型上带有多余的 const 限定符的非成员函数。
建议¶
应删除多余的 const 限定符，因为它没有作用。如果返回类型包含嵌入式限定符，则应注意仅删除多余的限定符。
示例¶
// The leftmost const has no effect here.
const int square(const int x) {
return x * x;
}
// The const has no effect here, and can easily be mistaken for const char*.
char* const id(char* s) {
return s;
}