I have a bunch of floats and I need to convert them to string to use Send command to send to a Receiver. However, I been trying to code like below where long1deg is a float. char long1degC = long1deg;
Or
char* long1degC = new char[30];
float long1deg= 2.4567F;
sprintf(long1degC, "%.4g", long1deg);
but I always get errors every time. Any pointer will be really appreciated.
by the way, does this Send command is different from the send() in c++ library?
char buffer[1024];
char tbuffer[64];
size_t sz;
if (initWinSockets()) return 1;
s = new UdpSocket;
if (s->OpenSend("127.0.0.1", 65500))
{
printf("UDP open error\n");
while (!_kbhit()){}
return 1;
}
/* Display UTC. */
__time64_t ltime;
__time64_t llast;
struct tm gmt;
_time64(&llast);
_time64(<ime);
while (!_kbhit())
{
_time64(<ime);
if (ltime != llast) // Has the secconds counter changed yet?
{
llast = ltime;
_gmtime64_s(&gmt, <ime);
asctime_s(tbuffer, 64, &gmt);
sz = sprintf_s(buffer, 1024, "Message sent from UDPsend at %s", tbuffer);
printf("Send==>%s", buffer);
s->Send(buffer, sz+1);
}
}
closeWinSockets();
return 0;
I tried to type in like below but the command does not send any info. char buffer[1024] = {long1degC,long1minC,long1secC,lat1degC,lat1minC,lat1secC,long2degC,long2minC,long2secC,lat2degC,lat2minC,lat2secC};