Big variables problem

[Rafael Marco de Lucas]

    Hello, i found that the following program gives an error, why ?
 is there any limit in the size of variables ?

      main () {
      int i;
      float jajaja[1000000][300];
      i=1;
      sleep(1);
      }

  i tried it compiling with gcc on as linux pc and a digital unix4 machines,
 and it only worked using the cc dec compiler,

Rafa