clang/test/SemaCXX/new-delete-0x.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s -triple=i686-pc-linux-gnu -std=c++11
   2
   3 using size_t = decltype(sizeof(0));
   4 struct noreturn_t {} constexpr noreturn = {};
   5
   6 void *operator new [[noreturn]] (size_t, noreturn_t);
   7 void operator delete [[noreturn]] (void*, noreturn_t);
   8
   9 void good_news()
  10 {
  11   auto p = new int[2][[]];
  12   auto q = new int[[]][2];
  13   auto r = new int*[[]][2][[]];
  14   auto s = new (int(*[[]])[2][[]]);
  15 }
  16
  17 void bad_news(int *ip)
  18 {
  19   // attribute-specifiers can go almost anywhere in a new-type-id...
  20   auto r = new int[[]{return 1;}()][2]; // expected-error {{expected ']'}}
  21   auto s = new int*[[]{return 1;}()][2]; // expected-error {{expected ']'}}
  22   // ... but not here:
  23   auto t = new (int(*)[[]]); // expected-error {{an attribute list cannot appear here}}
  24   auto u = new (int(*)[[]{return 1;}()][2]); // expected-error {{C++11 only allows consecutive left square brackets when introducing an attribute}} \
  25                                                 expected-error {{variably modified type}} \
  26                                                 expected-error {{a lambda expression may not appear inside of a constant expression}}
  27 }
  28
  29 void good_deletes()
  30 {
  31   delete [&]{ return (int*)0; }();
  32 }
  33
  34 void bad_deletes()
  35 {
  36   // 'delete []' is always array delete, per [expr.delete]p1.
  37   delete []{ return (int*)0; }(); // expected-error {{'[]' after delete interpreted as 'delete[]'}}
  38 }