clang/test/CodeGenCXX/reference-in-block-args.cpp

   1 // RUN: %clang_cc1 -fblocks %s -emit-llvm -o %t
   2
   3 extern "C" int printf(const char*, ...);
   4
   5 struct ST {
   6      int filler;
   7      int referrer;
   8 };
   9
  10 void OUTER_BLOCK(void (^fixer)(ST& ref)) {
  11     ST ref = {2, 100};
  12     fixer(ref);
  13 }
  14
  15 void INNER_BLOCK(int (^largeDo) ()) {
  16         printf("%d\n", largeDo());
  17 }
  18
  19 void scan() {
  20             OUTER_BLOCK(^(ST &ref) {
  21                 INNER_BLOCK(^() { return ref.referrer + ref.filler; });
  22             });
  23
  24 }
  25
  26 int main() {
  27     scan();
  28 }