need help with ctime

This is a discussion on need help with ctime within the C++ Programming forums, part of the General Programming Boards category; Code: #include < iostream > using namespace std; int main() { int num; cout << "Enter your lucky number" << ...

  1. #1
    Un Artiste Extraordinaire volk's Avatar
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    need help with ctime

    Code:
    #include < iostream >
    using namespace std;
    
    int main()
    {
    	int num;
    
    	cout << "Enter your lucky number"  << endl;
    	cin  >> num;
    
    	//if the user takes longer than 5 seconds to enter a number...
    	
    	//cout << "You took too damn long" << endl;
    	//exit ( EXIT_FAILURE );
    
    	return 0;
    }
    I'm not sure what to do with that if statement. I'm guessing you include ctime or some time header file that can accomplish such a task.

  2. #2
    C++ Developer XSquared's Avatar
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    There is no standard way to do non-blocking input.
    Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah

    You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie

  3. #3
    Toaster Zach L.'s Avatar
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    Won't be ctime... At least not only ctime. You have to implement a timer that can constantly be polling the system, or provide a callback to the system. Should be able to do it with threads (check out pThreads perhaps).
    The word rap as it applies to music is the result of a peculiar phonological rule which has stripped the word of its initial voiceless velar stop.

  4. #4
    Un Artiste Extraordinaire volk's Avatar
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    I had no idea it would that challenging to do something like that. Are you sure there isn't an easy way of doing that?

  5. #5
    Un Artiste Extraordinaire volk's Avatar
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    Speaking of time, does anyone know how to make a "real" timer? I'm not talking about something cheap like this:

    Code:
    #include < iostream >
    using namespace std;
    
    int main()
    {
    	int miliseconds = 0;
    	int seconds     = 0;
    	int minutes     = 0;
    	int hours       = 0;
    
    	for ( ; ; )
    	{
    		cout << hours   << " : "
    			 << minutes << " : "
    			 << seconds << " : "
    			 << miliseconds++;
    		
    		system ( "cls" );
    
    		if ( miliseconds == 60 )
    		{
    			miliseconds = 0;
    			seconds++;
    		}
    
    		if ( seconds == 60 )
    		{
    			seconds = 0;
    			minutes++;
    		}
    
    		if ( minutes == 60 )
    		{
    			minutes = 0;
    			hours++;
    		}
    	}
    
    	return 0;
    }

  6. #6
    C++ Developer XSquared's Avatar
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    Try the clock( ) function.
    Naturally I didn't feel inspired enough to read all the links for you, since I already slaved away for long hours under a blistering sun pressing the search button after typing four whole words! - Quzah

    You. Fetch me my copy of the Wall Street Journal. You two, fight to the death - Stewie

  7. #7
    i want wookie cookies the Wookie's Avatar
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    in a console app can't you only have 1 thing going on at a time? so i guess having a timer within the dos app while asking for user input wont work

  8. #8
    Toaster Zach L.'s Avatar
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    You can have multiple threads of execution. What you'd need to do to make the timer is to create two threads of execution - one for user input, and one for the timer (which would essentially be a for loop which polls the system). If the time reached a certain point, the timer thread must cancel the input thread. If that time is not reached, then the threads must be rejoined into the main execution thread.

    Probably a bit overkill for your program.
    The word rap as it applies to music is the result of a peculiar phonological rule which has stripped the word of its initial voiceless velar stop.

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