// PR c++/55149
// { dg-do compile { target c++11 } }
// { dg-options "-Wno-vla" }
// { dg-require-effective-target alloca }

template<unsigned int TA>
 struct SA
 {
   SA (const int & PA);
   int nt;
 };

template<typename TB>
 inline void
 test(TB aa)
 {
   ;
 }

template<unsigned int TA>
 inline
 SA<TA>::SA(const int & PA)
 {
   float e[nt];
   test([&e](int i, int j){ return e[i] < e[j]; });
 }

int main()
{
 int d;
 SA<2> iso(d);
 return 0;
}
