sleep(3C)
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sleep function
Delay a task for a given number of seconds.
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Calling Sequence
unsigned int hold;
sleep(hold);
where hold specifies the number of seconds to delay the task.
Description
Use the sleep function to delay a task for a specified number of
seconds.
Returns
The sleep function does not return anything.
Related Functions
See also the pause function, described in Chapter 2 of Using
Specialized C Functions.
Example
/* Program test for the sleep() function */
unsigned int hold;
main() {
printf("How long a nap (in seconds)?\n");
scanf("%d", &hold);
sleep(hold);
printf("I'm awake again.\n");
}
If you execute the program test, and answer its query with 5, it
pauses for 5 seconds, then generates the following:
I'm awake again.
DG/UX 4.00 Page 1
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