www.pudn.com > LFYOS.zip > map_zero.c

#include 
#include 
#include 
#include 
#include 
#include 
 
main() 
{ 
	int *p,*p1,fd,i,j,s,k,n; 
	long t1,t2; 
 
	if((fd=open("/dev/zero",2))<0){ 
		printf("\n fd is less than zero %d\n",fd); 
		exit(0); 
	}; 
	if(((int)p)==(-1)){ 
		printf("\n map fail "); 
		exit(0); 
	} 
	printf("\n input n please"); 
	scanf("%d",&n); 
	time(&t1); 
	for(k=0;k