| 1 | /* |
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| 2 | Copyright 2022 Glen Joseph Fernandes |
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| 3 | (glenjofe@gmail.com) |
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| 4 | |
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| 5 | Distributed under the Boost Software License, Version 1.0. |
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| 6 | (http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | */ |
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| 8 | #include <boost/core/allocator_access.hpp> |
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| 9 | #include <boost/core/lightweight_test.hpp> |
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| 10 | |
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| 11 | struct S { |
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| 12 | static int count; |
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| 13 | S() { |
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| 14 | ++count; |
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| 15 | } |
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| 16 | S(const S&) { |
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| 17 | ++count; |
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| 18 | } |
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| 19 | ~S() { |
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| 20 | --count; |
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| 21 | } |
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| 22 | }; |
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| 23 | |
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| 24 | int S::count = 0; |
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| 25 | |
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| 26 | template<class T> |
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| 27 | struct A1 { |
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| 28 | typedef T value_type; |
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| 29 | A1() { } |
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| 30 | }; |
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| 31 | |
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| 32 | #if !defined(BOOST_NO_CXX11_ALLOCATOR) |
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| 33 | template<class T> |
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| 34 | struct A2 { |
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| 35 | typedef T value_type; |
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| 36 | A2() { } |
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| 37 | template<class U> |
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| 38 | void destroy(U* p) { |
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| 39 | *p = U(); |
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| 40 | } |
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| 41 | }; |
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| 42 | #endif |
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| 43 | |
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| 44 | int main() |
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| 45 | { |
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| 46 | { |
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| 47 | A1<int> a; |
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| 48 | S s[3]; |
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| 49 | boost::allocator_destroy_n(a, p: &s[0], n: 3); |
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| 50 | BOOST_TEST_EQ(S::count, 0); |
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| 51 | ::new((void*)&s[0]) S(); |
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| 52 | ::new((void*)&s[1]) S(); |
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| 53 | ::new((void*)&s[2]) S(); |
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| 54 | } |
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| 55 | #if !defined(BOOST_NO_CXX11_ALLOCATOR) |
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| 56 | { |
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| 57 | A2<int> a; |
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| 58 | int i[3] = { 5, 5, 5 }; |
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| 59 | boost::allocator_destroy_n(a, p: &i[0], n: 3); |
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| 60 | BOOST_TEST_EQ(i[0], 0); |
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| 61 | BOOST_TEST_EQ(i[1], 0); |
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| 62 | BOOST_TEST_EQ(i[2], 0); |
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| 63 | } |
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| 64 | #endif |
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| 65 | return boost::report_errors(); |
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| 66 | } |
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| 67 | |
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