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How to convert string to char array in C++?
This is a C++ program to convert string to char array in C++. This can be done in multiple different ways
Type1
Algorithm
Begin Assign a string value to a char array variable m. Define and string variable str For i = 0 to sizeof(m) Copy character by character from m to str. Print character by character from str. End
Example
#include<iostream>
#include<string.h>
using namespace std;
int main()
{
char m[]="Tutorialspoint";
string str;
int i;
for(i=0;i<sizeof(m);i++)
{
str[i]=m[i];
cout<<str[i];
}
return 0;
}Type 2
We can simply call strcpy() function to copy the string to char array.
Algorithm
Begin Assign value to string s. Copying the contents of the string to char array using strcpy() . End
Example
#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int main()
{
string str = "Tutorialspoint";
char c[str.size() + 1];
strcpy(c, str.c_str());
cout << c << '\n';
return 0;
}Output
Tutorialspoint
Type3
We can avoid using strcpy() which is basically used in c by std::string::copy instead.
Algorithm
Begin Assign value to string s. Copying the contents of the string to char array using copy(). End
Example
#include <iostream>
#include <string>
using namespace std;
int main()
{
string str = "Tutorialspoint";
char c[str.size() + 1];
str.copy(c, str.size() + 1);
c[str.size()] = '\0';
cout << c << '\n';
return 0;
}Output
Tutorialspoint
Updated on: 30-Jul-2019
1K+ Views
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