bugprone-dangling-handle¶
Detect dangling references in value handles like std::string_view
.
These dangling references can be a result of constructing handles from temporary
values, where the temporary is destroyed soon after the handle is created.
Examples:
string_view View = string(); // View will dangle.
string A;
View = A + "A"; // still dangle.
vector<string_view> V;
V.push_back(string()); // V[0] is dangling.
V.resize(3, string()); // V[1] and V[2] will also dangle.
string_view f() {
// All these return values will dangle.
return string();
string S;
return S;
char Array[10]{};
return Array;
}
Options¶
- HandleClasses¶
A semicolon-separated list of class names that should be treated as handles. By default only
std::basic_string_view
andstd::experimental::basic_string_view
are considered.