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02-10-2006
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dilemma in control flow
hello im facing a queer problem when i execute the foll code in unix Code:
# include <stdio.h>
# include <unistd.h>
main(int argc,char *argv[])
{
FILE *fp = fopen("/ras/chirag/fifotest/file.fifo","a");
int i=1;
fprintf(fp,argv[1]);
printf("I SLEEP");
system("date");
for (i=0;i<50;i++)
{
//printf("do nothing\n");
}
i=sleep(25);
printf("%d",i);
printf("I WAKE UP");
system("date");
fclose(fp);
}
the above code first executes the date command and then sleeps for 25 secs and then prints the strings "I SLEEP" and "I WAKE UP" in the end... the output i obtained is: Code:
Fri Feb 10 19:10:16 CST 2006 Fri Feb 10 19:10:41 CST 2006 I SLEEP0I WAKE UP can anyone help me why is such a flow occuring and what can be done to get it the normal way? thanks in advance............ |
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