gcc/testsuite/g++.dg/torture/pr39417.C

   1 // { dg-do run }
   2 // { dg-skip-if "requires hosted libstdc++ for vector" { ! hostedlib } }
   3
   4 #include <vector>
   5
   6 std::vector <int>
   7 sequence(int l, int n)
   8 {
   9   std::vector <int> ret;
  10   for(int i=n;i<=100;i++)
  11     {
  12       if(i%2==0)
  13         {
  14           if(l%i==i/2)
  15             {
  16               int init =l/i-i/2+1;
  17               if(init>=0)
  18                 {
  19                   for(int j=0;j<i;j++)
  20                     {
  21                       ret.push_back(init);
  22                       init ++;
  23                     }
  24                   break;
  25                 }
  26             }
  27         }
  28       else
  29         {
  30           if(l%i==0)
  31             {
  32               int init =l/i-i/2;
  33               if(init>=0)
  34                 {
  35                   for(int j=0;j<i;j++)
  36                     {
  37                       ret.push_back(init);
  38                       init ++;
  39                     }
  40                   break;
  41                 }
  42             }
  43         }
  44     }
  45   return ret;
  46 }
  47 extern "C" void abort (void);
  48 int main()
  49 {
  50   std::vector<int> res = sequence(18, 2);
  51   if (res.size () != 3
  52       || res[0] != 5
  53       || res[1] != 6
  54       || res[2] != 7)
  55     abort ();
  56   return 0;
  57 }