gcc/testsuite/g++.dg/cpp0x/range-for11.C

   1 // Test for range-based for loop
   2 // Test the loop with a custom iterator
   3 // with begin/end as member functions
   4
   5 // { dg-do compile { target c++11 } }
   6
   7 struct iterator
   8 {
   9     int x;
  10     explicit iterator(int v) :x(v) {}
  11     iterator &operator ++() { ++x; return *this; }
  12     int operator *() { return x; }
  13     bool operator != (const iterator &o) { return x != o.x; }
  14 };
  15
  16 namespace foo
  17 {
  18     struct container
  19     {
  20         int min, max;
  21         container(int a, int b) :min(a), max(b) {}
  22
  23         iterator begin()
  24         {
  25             return iterator(min);
  26         }
  27         iterator end()
  28         {
  29             return iterator(max + 1);
  30         }
  31     };
  32 }
  33
  34 int main()
  35 {
  36     foo::container c(1,4);
  37     for (int it : c)
  38         ;
  39 }