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48 lines
1.2 KiB
C++
48 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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// <memory>
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// template <class ForwardIt>
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// void destroy(ForwardIt, ForwardIt);
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#include <memory>
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#include <cstdlib>
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#include <cassert>
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#include "test_macros.h"
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#include "test_iterators.h"
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struct Counted {
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static int count;
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static void reset() { count = 0; }
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Counted() { ++count; }
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Counted(Counted const&) { ++count; }
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~Counted() { --count; }
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friend void operator&(Counted) = delete;
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};
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int Counted::count = 0;
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int main()
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{
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using It = forward_iterator<Counted*>;
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const int N = 5;
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alignas(Counted) char pool[sizeof(Counted)*N] = {};
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Counted* p = (Counted*)pool;
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std::uninitialized_fill(p, p+N, Counted());
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assert(Counted::count == 5);
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std::destroy(p, p+1);
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p += 1;
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assert(Counted::count == 4);
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std::destroy(It(p), It(p + 4));
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assert(Counted::count == 0);
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}
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