gcc/testsuite/g++.dg/cpp0x/rvo.C

   1 // { dg-do run }
   2 // { dg-options "-std=c++0x" }
   3 // Contributed by Sylvain Pion
   4 static int rvalue_constructions = 0;
   5
   6 struct A {
   7   A ()         { }
   8   A (const A&) { }
   9   A (A&&)      { ++rvalue_constructions; }
  10   ~A ()        { }
  11 };
  12
  13 A f() {  return A(); }
  14
  15 extern "C" {
  16   void abort(void);
  17 }
  18
  19 int main()
  20 {
  21   A c = f();
  22
  23   if (rvalue_constructions != 0)
  24     abort();
  25 }