float array to string - urgent!!!

[iceno9]

All,
I have an array of 8 floating point numbers which i need to convert to a string so that i can send it over a network so my VB front end can read it.

How do i convert the floats to a string??

Need to get this sorted quick....been struggling with it for 2 days now

Matt

[CornedBee]

C:
sprintf
%f is a floating var.

C++:
ostringstream
in the header <sstream>
use it like any other stream (cout, ofstream)

[iceno9]

Im not actually printing them to screen.....i need to convert the floats to one big string and then write them character by character across the network...

Matt

[CornedBee]

printf prints to the screen.
sprintf prints to a string


ostream prints to the stream
ostringstream prints to a string



I know what I'm talking about.

#include <sstream>
using std::ostringstream;

float  arF[10];

void Convert(float *arF, int len, std::string &str)
{
  ostringstream ss;
  for(float *p = arF; p < arF+len, p++) {
    ss << *p;
  }
  str = ss.str();
}

Add formatting options as you wish.

[iceno9]

I sussed it!!!

I used sprintf and it solved the problem....sorry for the confusion, i guess it was me not knowing what i am doing!!! Im a hardware engineer after all, not a softy!

Thanks
Matt