Union cpp

union S
{
    std::string str;
    std::vector<int> vec;
    ~S() {} // needs to know which member is active, only possible in union-like class 
};          // the whole union occupies max(sizeof(string), sizeof(vector<int>))

Source: en.cppreference.com

Similar codes

1 vote175 views1 answer
Loop through char in string c++
C++
0 vote181 views1 answer
C++ restrict template types
C++
0 vote157 views1 answer
No indentation latex
C++
1 vote174 views1 answer
Qlabel set text color
C++
2 votes163 views1 answer
C++ switch string
C++
0 vote180 views1 answer
Assignment of single field in struct in solidity
C++
0 vote168 views1 answer
Spicoli
C++
0 vote157 views1 answer
Your age doubled is: xx where x is the users age doubled. (print answer with no decimal places)
C++
0 vote188 views1 answer
Cmake g++ address sanitizer
C++
2 votes194 views1 answer
Qchar to char
C++