Thread: Tik Tok

Originally Posted by Harith

Hey guys,
I have started exploring the time library, but I can't understand it:

Code:

#include<stdio.h>
#include<time.h>
int main(void)
{
    clock_t   h;
    //first assignment 
    h = clock();
    
    while(h != 9)
    {
    //second assignment
    h = clock();

    printf("%d\n",h);
    }
    
    system("pause");
    return 0;
}

I have got three questions:
1. If I am not doing first assignment of 'h' than the program is not working properly, why?

2. What does h gets assigned to? Is it seconds?

3. How can I make a program to print something for few seconds?

Any help will be appreciated.

(1) Well, 'h' is uninitialized - what do expect it to contain?
(2) Depends on the implementation. Refer to the macro CLOCKS_PER_SEC.
(3) Perhaps this will help get you started:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
void delay( double seconds )
{
    clock_t
        period = ( clock_t )( clock( ) + CLOCKS_PER_SEC * seconds );
    while( clock( ) < period )
        continue;
}
void print_with_delay( const char* message, double seconds )
{
    size_t
        index;
    for( index = 0; message[ index ] != 0; ++index )
    {
        putchar( message[ index ] );
        fflush( stdout );
        delay( seconds );
    }
}
int main( void )
{
    print_with_delay( "Printing with a delay of 0.2 seconds\n", 0.2 );
    print_with_delay( "Printing with a delay of 0.1 seconds\n", 0.1 );
}

clock - C++ Reference

The value returned is expressed in clock ticks, which are units of time of a constant but system-specific length (with a relation of CLOCKS_PER_SEC clock ticks per second).

The function reference is written for something...

Originally Posted by SirPrattlepod

Why are your parenthesis like that? It's kind of hard to read

I suppose you'd prefer the style used in my signature then?

Originally Posted by SirPrattlepod

Style in sig is slightly better
[...]
Edit: also
[...]
Really?!

(1) I could give a flying flip for what you think of my style.
(2) "sleep" is not standard, if that's what your thinking, which is why I posted the busy loop version.

Originally Posted by SirPrattlepod

Nah, that's not what I was thinking. I was thinking continue was a bit... errr, umm... strange

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Wow, that was easy...