Thread: Making a timer...

>Checked and found that time_T pretty much has to be an integer.
No, it doesn't. time_t can be a floating point type just as easily as a signed or unsigned integral type. The size and representation are completely up to the implementation, so you cannot assume anything more than the fact that time_t is arithmetic, and can be used to compare with (time_t)-1. Everything else is non-portable.

Originally Posted by killdragon

unless you wanted it to be syncronized while the computers shut down or the same as the computer clock you can do this

Code:

#include <iostream.h>
#include <windows.h>
int main()
{
int loop; // in case you wanted it to do something over and over
for (loop=0;loop>=0;loop++)
{
Sleep(60000); // a minute, one second is 1000, do the math
cout << "\a";
}

return 0;
}

almost positive i didn't make any mistakes-i hope

a few, actually... here's what the code should look like:

Code:

#include <iostream> //<iostream.h> is depreciated
#include <windows.h> //not too sure about this one

int main()
{
  //for (int loop=0;loop>=0;loop++) //infinite loop - might as well declare loop here
          //because it most likely won't be used outside the 
          //scope of the loop

  for(;;)  //does the same as above, but saves a teeny bit of memory
  {
    Sleep(60000); //inadvisable - not portable, but it does free up the CPU
    cout << "\a";  //ringing the system bell every minute... 
  }

return 0;
}

>//<iostream.h> is depreciated
Deprecated means that something is still standard but not assured to be in the next revision. iostream.h is not a part of the C++ standard at all, deprecated or not. So while an implementation is allowed to give you iostream.h according to the rules of implementation-dependent extensions, the standard makes no guarantees as to its contents. I could legally write a compiler that supports iostream.h and leave it empty.

>//not too sure about this one
It should exist on a Windows box, otherwise I wouldn't hold my breath.