new_nothrow.pass.cpp (1272B)
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 // asan and msan will not call the new handler. 13 // UNSUPPORTED: sanitizer-new-delete 14 15 #include <new> 16 #include <cstddef> 17 #include <cassert> 18 #include <limits> 19 20 #include "test_macros.h" 21 22 int new_handler_called = 0; 23 24 void my_new_handler() 25 { 26 ++new_handler_called; 27 std::set_new_handler(0); 28 } 29 30 bool A_constructed = false; 31 32 struct A 33 { 34 A() {A_constructed = true;} 35 ~A() {A_constructed = false;} 36 }; 37 38 int main() 39 { 40 std::set_new_handler(my_new_handler); 41 #ifndef TEST_HAS_NO_EXCEPTIONS 42 try 43 #endif 44 { 45 void* vp = operator new (std::numeric_limits<std::size_t>::max(), std::nothrow); 46 assert(new_handler_called == 1); 47 assert(vp == 0); 48 } 49 #ifndef TEST_HAS_NO_EXCEPTIONS 50 catch (...) 51 { 52 assert(false); 53 } 54 #endif 55 A* ap = new(std::nothrow) A; 56 assert(ap); 57 assert(A_constructed); 58 delete ap; 59 assert(!A_constructed); 60 }