println doesn't compile due to a weird problem

hi all,

today encountered problem first time:

for reason compilation of code fails when run this:

code: [select]


double x=0;

void setup()
{
  serial.begin(9600);
}

void loop()
{
  x=x+0.01;
  serial.println(x);
  delay(1000);
}

but when add (meaningless) lines compile fine , works well:

code: [select]


double x=0;

void setup()
{
  serial.begin(9600);
}

void loop()
{
  char line[100];
  x=x+0.01;
  sprintf(line,"%d",x);
  serial.println(x);
  delay(1000);
}



a similar thing happened me today integer instead of double reason cannot recreate problem. pc restarted , uno unplugged , replugged no avail.

anyone?

your first program compiles me.

uno
ide 1.5.6-r2
windows 7

what error message ?

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