c++ - Copying a std::string to char* -

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• how convert std::string const char* or char*? 8 answers

i trying create copy of std::string char*. function , seen result:

void main() { std::string test1; std::cout << "enter data1" << std::endl; std::cin >> test1; char* test2; test2 = (char*)test1.c_str(); std::cout << "test1: "<< &test1 << std::endl; std::cout << "test2: "<< &test2 << std::endl; }  enter data1 check test1: 0x7fff81d26900 test2: 0x7fff81d26908 

i unsure if copy has been created or both of them pointing same location. how confirm this?

you copying adress , using c cast in c++ use strdup instead

char* test2; test2 = strdup(test1.c_str()); //free after 

or

   char *test2 = malloc(strlen(test1.c_str()));    strcpy(test2, test1.c_str());