allocate.pass.cpp revision c52f43e72dfcea03037729649da84c23b3beb04a
1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. 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 20int new_called = 0; 21 22void* 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 29void operator delete(void* p) throw() 30{ 31 --new_called; 32 std::free(p); 33} 34 35int A_constructed = 0; 36 37struct A 38{ 39 int data; 40 A() {++A_constructed;} 41 A(const A&) {++A_constructed;} 42 ~A() {--A_constructed;} 43}; 44 45int 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