Reading raw byte array into std::string

Question

I\'ve been wondering about the following issue: assume I have a C style function that reads raw data into a buffer

int recv_n(int handle, void* buf, size_t l         


        

Answer 1

Yes, after C++11.

But you cant use s.data() as it returns a char const*

Try:

std::string s(100, '\0');
recv_n(handle, &s[0], 100);

Depending on situation, I may have chosen a std::vector<char> especially for raw data (though it would all depend on usage of the data in your application).

Answer 2

Why not use a vector<char> instead of a string? That way you can do:

vector<char> v(100, '\0');
recv_n(handle, &v[0], 100);

This seems more idiomatic to me, especially since you aren't using it as a string (you say it's raw data).