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Revise allocator_access implementation

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Glen Fernandes
2020-05-25 15:00:18 -04:00
parent 65901249d5
commit 376aa7aa31
22 changed files with 562 additions and 582 deletions
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43
test/allocator_construct_test.cpp
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@@ -6,43 +6,40 @@ Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/core/allocator_access.hpp>
#include <boost/core/default_allocator.hpp>
#include <boost/core/lightweight_test.hpp>
struct S {
S(int v)
: value(v) { }
int value;
template<class T>
struct A1 {
typedef T value_type;
A1() { }
};
struct A1 { };
#if defined(BOOST_CORE_ALLOCATOR_DETECTION)
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
template<class T>
struct A2 {
void construct(S* p, int v) {
new(p) S(v + 1);
typedef T value_type;
A2() { }
template<class U, class V>
void construct(U* p, const V& v) {
::new((void*)p) U(v + 1);
}
};
#endif
int main()
{
boost::default_allocator<S> d;
{
S* p = d.allocate(1);
A1 a;
boost::allocator_construct(a, p, 1);
BOOST_TEST_EQ(p->value, 1);
d.deallocate(p, 1);
A1<int> a;
int i = 0;
boost::allocator_construct(a, &i, 5);
BOOST_TEST_EQ(i, 5);
}
#if defined(BOOST_CORE_ALLOCATOR_DETECTION)
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
{
S* p = d.allocate(1);
A2 a;
boost::allocator_construct(a, p, 1);
BOOST_TEST_EQ(p->value, 2);
d.deallocate(p, 1);
A1<int> a;
int i = 0;
boost::allocator_construct(a, &i, 5);
BOOST_TEST_EQ(i, 6);
}
#endif
return boost::report_errors();