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      1 // RUN: %clang_cc1 -pedantic-errors -fblocks -std=c++1y -emit-pch %s -o %t-cxx1y
      2 // RUN: %clang_cc1 -ast-print -pedantic-errors -fblocks -std=c++1y -include-pch %t-cxx1y  %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 [](auto z, int y = 0) { return z + y; }(5);
     10 };
     11 
     12 inline int add_int_slowly_twice(int x, int y) {
     13   int i = add_slowly(x, y);
     14   auto lambda = [](auto z) { return z + z; };
     15   return i + lambda(y);
     16 }
     17 
     18 inline int sum_array(int n) {
     19   auto lambda = [](auto N) -> int {
     20     int sum = 0;
     21     int array[5] = { 1, 2, 3, 4, 5};
     22   
     23     for (unsigned I = 0; I < N; ++I)
     24       sum += array[N];
     25     return sum;
     26   };
     27 
     28   return lambda(n);
     29 }
     30 
     31 inline int to_block_pointer(int n) {
     32   auto lambda = [=](int m) { return n + m; };
     33   int (^block)(int) = lambda;
     34   return block(17);
     35 }
     36 
     37 template<typename T>
     38 int init_capture(T t) {
     39   return [&, x(t)] { return sizeof(x); };
     40 }
     41 
     42 #else
     43 
     44 // CHECK-PRINT: T add_slowly
     45 // CHECK-PRINT: return []
     46 template float add_slowly(const float&, const float&);
     47 
     48 int add(int x, int y) {
     49   return add_int_slowly_twice(x, y) + sum_array(4) + to_block_pointer(5);
     50 }
     51 
     52 // CHECK-PRINT: inline int add_int_slowly_twice 
     53 // CHECK-PRINT: lambda = [] ($auto-0-0 z
     54 
     55 // CHECK-PRINT: init_capture
     56 // CHECK-PRINT: [&, x( t )]
     57 
     58 #endif
     59