#include <syscall.h>
int main (void)
-{
+@{
void *addr = (void *) 0x10000000;
int fd = open ("foo");
int length = filesize (fd);
if (mmap (fd, addr, length))
printf ("success!\n");
-}
+@}
@end example
Suppose @file{foo} is a text file and you want to print the first 64