问题描述
|
为什么以下内容不处理重新引发的异常?我尝试了所有组合,但没有一个组合会在最后一个捕获中显示输出,所以我很困惑!
Derived D;
try {
throw D;
} catch ( const Derived &d) {
throw;
} catch (const Base &b) {
cout << \"caught!\" << endl;
}
Derived D;
try {
throw D;
} catch ( const Derived d) {
throw;
} catch (const Base b) {
cout << \"caught!\" << endl;
}
Derived D;
try {
throw D;
} catch ( const Derived d) {
throw;
} catch (const Base &b) {
cout << \"caught!\" << endl;
}
Derived D;
try {
throw D;
} catch ( const Derived &d) {
throw;
} catch (const Base b) {
cout << \"caught!\" << endl;
}
解决方法
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