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      1 // RUN: %clang_cc1 -pedantic-errors -fblocks -std=c++1y -emit-pch %s -o %t-cxx11
      2 // RUN: %clang_cc1 -ast-print -pedantic-errors -fblocks -std=c++1y -include-pch %t-cxx11  %s | FileCheck -check-prefix=CHECK-PRINT %s
      3 
      4 #ifndef HEADER_INCLUDED
      5 
      6 #define HEADER_INCLUDED
      7 template<typename T>
      8 T add_slowly(const T& x, const T &y) {
      9   return [=, &y] { return x + y; }();
     10 };
     11 
     12 inline int add_int_slowly_twice(int x, int y) {
     13   int i = add_slowly(x, y);
     14   auto lambda = [&](int z) { return x + z; };
     15   return i + lambda(y);
     16 }
     17 
     18 inline int sum_array(int n) {
     19   int array[5] = { 1, 2, 3, 4, 5};
     20   auto lambda = [=](int N) -> int {
     21     int sum = 0;
     22     for (unsigned I = 0; I < N; ++I)
     23       sum += array[N];
     24     return sum;
     25   };
     26 
     27   return lambda(n);
     28 }
     29 
     30 inline int to_block_pointer(int n) {
     31   auto lambda = [=](int m) { return n + m; };
     32   int (^block)(int) = lambda;
     33   return block(17);
     34 }
     35 
     36 template<typename T>
     37 int init_capture(T t) {
     38   return [&, x(t)] { return sizeof(x); };
     39 }
     40 
     41 #else
     42 
     43 // CHECK-PRINT: T add_slowly
     44 // CHECK-PRINT: return [=, &y]
     45 template float add_slowly(const float&, const float&);
     46 
     47 int add(int x, int y) {
     48   return add_int_slowly_twice(x, y) + sum_array(4) + to_block_pointer(5);
     49 }
     50 
     51 // CHECK-PRINT: inline int add_int_slowly_twice 
     52 // CHECK-PRINT: lambda = [&] (int z)
     53 
     54 // CHECK-PRINT: init_capture
     55 // CHECK-PRINT: [&, x(t)]
     56 
     57 #endif
     58