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// PR c++/19989

// Don't instantiate a function template if it would generate an

//   array of size zero.

// { dg-do compile }

template struct cl {

  const static int value = T;

};

template void fn (char (*) [cl::value] = 0 ); // { dg-error "zero-size array" }

void foo (void)

{

  fn<0> ();  // { dg-error "no matching function" }

  // { dg-message "candidate" "candidate note" { target *-*-* } 15 }

}