Delay program execution for a specified number of seconds.
Compatibility:This function is compatible with the following targets:
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EMB/RTOS
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#include <unistd.h>
unsigned int sleep(unsigned int sleep);Parameters:
Parameters for this facility are:
The function sleep() delays execution of a program for the time indicated by the unsigned integer argument. For the Macintosh system there is no error value returned. Example of usage is given in "Example of sleep() usage."
#include <stdio.h>
#include <unistd.h>
int main(void)
{
printf("Output to window\n");
fflush(stdout); /* needed to force output */
sleep(3);
printf("Second output to window");
return 0;
}
Result
Output to window
< there is a delay now >
Second output to window
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Last updated: August 16, 2000