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Remove BOOST_NO_SFINAE workarounds

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This commit is contained in:
Peter Dimov
2024-01-27 06:58:05 +02:00
parent eff07e72c3
commit 509de96a1c
2 changed files with 0 additions and 130 deletions
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include/boost/function/function_base.hpp
-94
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@@ -522,65 +522,6 @@ namespace boost {
// A type that is only used for comparisons against zero
struct useless_clear_type {};
#ifdef BOOST_NO_SFINAE
// These routines perform comparisons between a Boost.Function
// object and an arbitrary function object (when the last
// parameter is false_type) or against zero (when the
// last parameter is true_type). They are only necessary
// for compilers that don't support SFINAE.
template<typename Function, typename Functor>
bool
compare_equal(const Function& f, const Functor&, int, true_type)
{ return f.empty(); }
template<typename Function, typename Functor>
bool
compare_not_equal(const Function& f, const Functor&, int,
true_type)
{ return !f.empty(); }
template<typename Function, typename Functor>
bool
compare_equal(const Function& f, const Functor& g, long,
false_type)
{
if (const Functor* fp = f.template target<Functor>())
return function_equal(*fp, g);
else return false;
}
template<typename Function, typename Functor>
bool
compare_equal(const Function& f, const reference_wrapper<Functor>& g,
int, false_type)
{
if (const Functor* fp = f.template target<Functor>())
return fp == g.get_pointer();
else return false;
}
template<typename Function, typename Functor>
bool
compare_not_equal(const Function& f, const Functor& g, long,
false_type)
{
if (const Functor* fp = f.template target<Functor>())
return !function_equal(*fp, g);
else return true;
}
template<typename Function, typename Functor>
bool
compare_not_equal(const Function& f,
const reference_wrapper<Functor>& g, int,
false_type)
{
if (const Functor* fp = f.template target<Functor>())
return fp != g.get_pointer();
else return true;
}
#endif // BOOST_NO_SFINAE
/**
* Stores the "manager" portion of the vtable for a
* boost::function object.
@@ -705,7 +646,6 @@ public:
# pragma clang diagnostic pop
#endif
#ifndef BOOST_NO_SFINAE
inline bool operator==(const function_base& f,
detail::function::useless_clear_type*)
{
@@ -729,38 +669,6 @@ inline bool operator!=(detail::function::useless_clear_type*,
{
return !f.empty();
}
#endif
#ifdef BOOST_NO_SFINAE
// Comparisons between boost::function objects and arbitrary function objects
template<typename Functor>
inline bool operator==(const function_base& f, Functor g)
{
typedef integral_constant<bool, (is_integral<Functor>::value)> integral;
return detail::function::compare_equal(f, g, 0, integral());
}
template<typename Functor>
inline bool operator==(Functor g, const function_base& f)
{
typedef integral_constant<bool, (is_integral<Functor>::value)> integral;
return detail::function::compare_equal(f, g, 0, integral());
}
template<typename Functor>
inline bool operator!=(const function_base& f, Functor g)
{
typedef integral_constant<bool, (is_integral<Functor>::value)> integral;
return detail::function::compare_not_equal(f, g, 0, integral());
}
template<typename Functor>
inline bool operator!=(Functor g, const function_base& f)
{
typedef integral_constant<bool, (is_integral<Functor>::value)> integral;
return detail::function::compare_not_equal(f, g, 0, integral());
}
#else
// Comparisons between boost::function objects and arbitrary function
// objects.
@@ -837,8 +745,6 @@ template<typename Functor>
else return true;
}
#endif // Compiler supporting SFINAE
namespace detail {
namespace function {
inline bool has_empty_target(const function_base* f)