gcc/testsuite/g++.old-deja/g++.jason/temporary2.C

   1 // { dg-do assemble  }
   2 class X // Indentation has been done so to see the similarities.
   3 {
   4 public:
   5   X() {}                  // { dg-message "note" } referenced below
   6          X(X& x) {x.i=7;} // { dg-message "note" } Both functions modify the
   7   void bar(X& x) {x.i=7;} // { dg-message "note" } reference parameter x.
   8   int i;
   9 };
  10
  11 X foo() { X x; return x; }
  12
  13 int main()
  14 {
  15   X   x(foo()); // { dg-error "no match" } Compiler doesn't warn about temporary reference.
  16   x.bar(foo()); // { dg-error "no match" } The same mistake is warned about in this case.
  17 }