string question

Hello..

Is this:

Code:

char *query = new char[512];
char *ptr = query;
*ptr++ = 0;
*ptr++ = 15;
*ptr++ = 0;
*ptr++ = 1;

the same as:

string query = "01501";

?

If not, how should I define string query then?

No it's not the same.

Try strcpy( query, "01501");

Seems to me it'd be more along the lines of memcpy(query, "\000\017\000\001", 4)

i'd be more along the lines of

std::string = "01501";

The problem is I just want to have c++ string the same as c string and I wonder what would be the right way, since c++ strings are better to use and are not NULL terminated.

Just use a std::string for everything.

When you absolutely need the c-string equivalent, because that's what some API function expects, then just use mystring.c_str() to get a const char * equivalent.

So would it be okay to do std::string str = "01501"; for what I want? Or would it be better to use vector <char> instead?

Or a vector of ints
It seems like you're not storing strings at all, so stop writing things between double quotes.

Its not actually a string, its a data that will be sent in binary mode through socket.

Do you know <bitset>? If not, check it out. It's got lots of binary functionality.

Originally Posted by twomers

Do you know <bitset>? If not, check it out. It's got lots of binary functionality.

I have no idea how I should use it in this case..

It's very handy for int-bit conversion and whatnot. Check it out. I'm sure I have mentioned it before on the forums.