Question

I know that getline(cin,_string); works perfectly

but this dosen’t:

char* _chArr = new char;
getline(cin,_chArr);

Even this alson doesn’t work:

char* _chArr = new char[30];
getline(cin,_chArr);

Isn’t char* a string??

Answer 1

Well think of it logically. the char* is just a pointer to a character type memory block. You have to assign it some amount of dynamic memory and then copy data into it using strcpy() or manually. Direct input is not supported in C++. Strings are in fact objects which contain size within themselves. They are designed by the experts in this industry, and they have provided the direct input and dynamic growth as in built functionality.
There is a differnce between string and cstring. Cstring is the char*.