Miscellany

int main(int argc,char **argv)
{
 void *b;
 int v=1,i;

 if (argc<2)
 {
  fprintf(stderr,"parameter missing\n");
  return -1;
 }
 sscanf(argv[1],"%d",&i);
 fprintf(stdout,"allocating %dM memory\n",i);
 size_t s=1024*1024*i;
 b=malloc(s);
 if (b==0) exit(1);
 memset(b,v,s);
 free(b);
 return 0;
}