C++ release allocated char* into string

Question

I have tried to find an answer but couldn't see anything straight forward.

How do I free the allocated memory in the next snippet code:

const char* attStr = strdup(OtherCharStr); string str(attStr, strlen(attStr)); delete str; //???

Answer 1

You need to release attStr not the c++ string that will release its resources alone.

void func()
{
    const char* attStr = strdup(OtherCharStr);
    string str(attStr, strlen(attStr));
    free(attStr);
}//here str will release its own resources

Also you can do string str = OtherCharStr; an that's it. Only check what happens with OtherCharStr