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How to convert an std::string to const char* or char* in C++?
You can use the c_str() method of the string class to get a const char* with the string contents.
example
#include<iostream>
using namespace std;
int main() {
string x("hello");
const char* ccx = x.c_str();
cout << ccx;
}Output
This will give the output −
hello
To get a char*, use the copy function.
Example
#include<iostream>
using namespace std;
int main() {
string x("hello");
// Allocate memory
char* ccx = new char[s.length() + 1];
// Copy contents
std::copy(s.begin(), s.end(), ccx)
cout << ccx;
}Output
This will give the output −
hello
Updated on: 12-Feb-2020
14K+ Views
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