forked from boostorg/core
		
	
		
			
				
	
	
		
			63 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			63 lines
		
	
	
		
			1.0 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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Copyright 2020 Glen Joseph Fernandes
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(glenjofe@gmail.com)
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Distributed under the Boost Software License, Version 1.0.
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(http://www.boost.org/LICENSE_1_0.txt)
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*/
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#include <boost/core/allocator_access.hpp>
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#include <boost/core/lightweight_test.hpp>
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struct S {
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    static int count;
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    S() {
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        ++count;
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    }
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    S(const S&) {
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        ++count;
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    }
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    ~S() {
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        --count;
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    }
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};
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int S::count = 0;
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template<class T>
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struct A1 {
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    typedef T value_type;
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    A1() { }
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};
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#if !defined(BOOST_NO_CXX11_ALLOCATOR)
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template<class T>
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struct A2 {
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    typedef T value_type;
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    A2() { }
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    template<class U>
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    void destroy(U* p) {
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        *p = U();
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    }
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};
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#endif
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int main()
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{
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    {
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        A1<int> a;
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        S s;
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        boost::allocator_destroy(a, &s);
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        BOOST_TEST_EQ(S::count, 0);
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        ::new((void*)&s) S();
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    }
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#if !defined(BOOST_NO_CXX11_ALLOCATOR)
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    {
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        A1<int> a;
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        int i = 5;
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        boost::allocator_destroy(a, &i);
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        BOOST_TEST_EQ(i, 0);
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    }
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#endif
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    return boost::report_errors();
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}
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