clang/test/SemaCXX/cxx1z-init-statement-template.cpp

   1 // RUN: %clang_cc1 -std=c++1z -verify -emit-llvm-only %s
   2 // expected-no-diagnostics
   3
   4 // rdar://problem/33888545
   5 template <unsigned int BUFFER_SIZE> class Buffer {};
   6
   7 class A {
   8 public:
   9   int status;
  10 };
  11
  12 template <unsigned int N> A parse(Buffer<N> buffer);
  13
  14 template<unsigned int N>
  15 void init_in_if(Buffer<N> buffer) {
  16   if (A a = parse(buffer); a.status > 0) {
  17   }
  18 }
  19
  20 template<unsigned int N>
  21 void init_in_switch(Buffer<N> buffer) {
  22   switch (A a = parse(buffer); a.status) {
  23     default:
  24       break;
  25   }
  26 }
  27
  28 void test() {
  29   Buffer<10> buffer;
  30   init_in_if(buffer);
  31   init_in_switch(buffer);
  32 }