#include <stdio.h>

int main() {

  FILE *in;
  int ch;

  if ((in = fopen("TEST.TXT", "r")) != NULL) {
     while ((ch = getc(in)) != EOF)
            putc(ch, stdout); /* equivale a putchar(ch); */
     fclose(in);
     }
  else
     puts("No se puede abrir \"test\".");

  putchar('\n');
  system("pause");
  return 0;
}