View Compilation Error

0_0_14203032_8421.c: In function 'main':
0_0_14203032_8421.c:9:25: error: 'EOF' undeclared (first use in this function)
   while(scanf("%d",&n)!=EOF)
                         ^
0_0_14203032_8421.c:9:25: note: each undeclared identifier is reported only once for each function it appears in