Prog#179: read from file & display on screen

/*
read from file & display on screen
Program#179
*/
#include<stdio.h>
main()
{
char a;
FILE *fp;
fp=fopen ("pr189", "r");
if(fp==NULL)
{
printf("file open error");
return 0;
}
scanf("%c", &a);
while(a!=EOF)
{
printf("%c", a);
fscanf(fp,"%c", &a);
}
fclose (fp);
}