Hello;
I have a float in the variable
float x_lab;
I need to convert this value to a string and store the string as a variable for later use. The precision needs to be to two decimal places .. positive or negative values could be in x_lab. And x_lab may change and be output through the string later in the program. I must convert to a string, b/c i will actually be passing the string to an openGL call.
Please help. I need the fastest and simplest way to do this
Thanks
char buf[asmuchasyouneed];
sprintf(buf, "%.2f", x_lab);
[edit] oops, forgot this was the C++ forum.
I think this might work but it's late so someone else has to take over for me.Code:#include <string> #include <sstream> string str; stringstream stream(str, ios_base::out); stream.precision(2); stream << x_lab;
Last edited by OnionKnight; 02-27-2006 at 09:27 PM.
Thank You this worked perfect
Are you sure? The first one does, but I looked up my stringstream version and it seems I was way off. Here's a valid code example to clean up my mess:
Code:#include <iostream> #include <string> #include <sstream> using namespace std; int main () { float x_lab = 5.24; ostringstream stream; stream.precision(2); stream << fixed << x_lab; cout << stream.str(); return 0; }
