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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10  // test operator new (nothrow)
     11 
     12 #include <new>
     13 #include <cstddef>
     14 #include <cassert>
     15 #include <limits>
     16 
     17 int new_handler_called = 0;
     18 
     19 void new_handler()
     20 {
     21     ++new_handler_called;
     22     std::set_new_handler(0);
     23 }
     24 
     25 bool A_constructed = false;
     26 
     27 struct A
     28 {
     29     A() {A_constructed = true;}
     30     ~A() {A_constructed = false;}
     31 };
     32 
     33 int main()
     34 {
     35     std::set_new_handler(new_handler);
     36     try
     37     {
     38         void* vp = operator new (std::numeric_limits<std::size_t>::max(), std::nothrow);
     39         assert(new_handler_called == 1);
     40         assert(vp == 0);
     41     }
     42     catch (...)
     43     {
     44         assert(false);
     45     }
     46     A* ap = new(std::nothrow) A;
     47     assert(ap);
     48     assert(A_constructed);
     49     delete ap;
     50     assert(!A_constructed);
     51 }
     52