Convert std::string to char*.

[18hRX9L8]

Is there anyway to convert std::string to char*?

Like:

std::string x="hello world";
char* y=x;

[Lachlan Easton]

string.c_str()

[Catfish4]

std::string x = "hello world";
char *y = x.c_str();

For this you apply the D3 rule: Don't Do Dat. Because when x "dies", so will y.

#include <cstring>
#include <string>

// ...

std::string x = "hello world";
char *y = new char[x.length() + 1]; // or
// char y[100];

std::strcpy(y, x.c_str());
delete[] y;

[18hRX9L8]

Thank you Catfish4!

[18hRX9L8]

Oh wait, also, how would I convert char* to string?

[Disch]

const char* foo = "Whatever";

string bar = foo;

[18hRX9L8]

Thanks Disch.