Question

How to convert a vector of chars to string in C++

Answer 1

#include <iostream>
#include <vector>
 
int main()
{
    std::vector<char> v({ 'c', '+', '+' });
 
    std::string s(v.begin(), v.end());
    
    std::cout << s;
 
    return 0;
}




/*
run:

c++

*/

 

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Answer 2

#include <iostream>
#include <sstream>
#include <vector>
 
int main()
{
    std::vector<char> v({ 'c', '+', '+' });
 
    std::ostringstream oss;
    for (char ch: v) {
        oss << ch;
    }
 
    std::string s(oss.str());
    
    std::cout << s;
 
    return 0;
}





/*
run:

c++

*/

 

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Answer 3

#include <iostream>
#include <vector>

int main()
{
    std::vector<char> v({ 'c', '+', '+' });
 
    std::string s;
    
    for (char ch: v) {
        s.push_back(ch);
    }
 
    std::cout << s;
 
    return 0;
}





/*
run:

c++

*/

 

70+ SQL courses for beginners and professionals