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Simplify C++03 detection traits slightly

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This commit is contained in:
Glen Fernandes
2021-12-07 21:08:04 -05:00
parent f5ab83efe8
commit c8479b4eca
1 changed files with 13 additions and 34 deletions
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47
include/boost/core/allocator_access.hpp
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@ -547,31 +547,25 @@ allocator_destroy(A&, T* p)
namespace detail {
#if defined(BOOST_NO_CXX11_ALLOCATOR)
template<class A, typename allocator_size_type<A>::type(A::*)()>
struct alloc_max_size {
char one, two;
};
template<class A, typename allocator_size_type<A>::type(A::*)() const>
struct alloc_max_size_const {
char one, two;
};
template<class A, typename allocator_size_type<A>::type(*)()>
struct alloc_max_size_static {
char one, two;
template<class T, T>
struct alloc_no {
char x;
char y;
};
template<class A>
class alloc_has_max_size {
template<class O>
static alloc_max_size<O, &O::max_size> check(int);
static alloc_no<typename boost::allocator_size_type<O>::type(O::*)(),
&O::max_size> check(int);
template<class O>
static alloc_max_size_const<O, &O::max_size> check(int);
static alloc_no<typename boost::allocator_size_type<O>::type(O::*)() const,
&O::max_size> check(int);
template<class O>
static alloc_max_size_static<O, &O::max_size> check(int);
static alloc_no<typename boost::allocator_size_type<O>::type(*)(),
&O::max_size> check(int);
template<class>
static char check(long);
@ -625,33 +619,18 @@ allocator_max_size(const A&) BOOST_NOEXCEPT
namespace detail {
#if defined(BOOST_NO_CXX11_ALLOCATOR)
template<class A, A(A::*)()>
struct alloc_soccc {
char one, two;
};
template<class A, A(A::*)() const>
struct alloc_soccc_const {
char one, two;
};
template<class A, A(*)()>
struct alloc_soccc_static {
char one, two;
};
template<class A>
class alloc_has_soccc {
template<class O>
static alloc_soccc<O, &O::select_on_container_copy_construction>
static alloc_no<O(O::*)(), &O::select_on_container_copy_construction>
check(int);
template<class O>
static alloc_soccc_const<O, &O::select_on_container_copy_construction>
static alloc_no<O(O::*)() const, &O::select_on_container_copy_construction>
check(int);
template<class O>
static alloc_soccc_static<O, &O::select_on_container_copy_construction>
static alloc_no<O(*)(), &O::select_on_container_copy_construction>
check(int);
template<class>