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 // <memory> 11 12 // allocator: 13 // pointer allocate(size_type n, allocator<void>::const_pointer hint=0); 14 15 #include <memory> 16 #include <new> 17 #include <cstdlib> 18 #include <cassert> 19 20 int new_called = 0; 21 22 void* operator new(std::size_t s) throw(std::bad_alloc) 23 { 24 ++new_called; 25 assert(s == 3 * sizeof(int)); 26 return std::malloc(s); 27 } 28 29 void operator delete(void* p) throw() 30 { 31 --new_called; 32 std::free(p); 33 } 34 35 int A_constructed = 0; 36 37 struct A 38 { 39 int data; 40 A() {++A_constructed;} 41 A(const A&) {++A_constructed;} 42 ~A() {--A_constructed;} 43 }; 44 45 int main() 46 { 47 std::allocator<A> a; 48 assert(new_called == 0); 49 assert(A_constructed == 0); 50 A* ap = a.allocate(3); 51 assert(new_called == 1); 52 assert(A_constructed == 0); 53 a.deallocate(ap, 3); 54 assert(new_called == 0); 55 assert(A_constructed == 0); 56 57 A* ap2 = a.allocate(3, (const void*)5); 58 assert(new_called == 1); 59 assert(A_constructed == 0); 60 a.deallocate(ap2, 3); 61 assert(new_called == 0); 62 assert(A_constructed == 0); 63 } 64
