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Leave detail/limits.hpp a stub; update test

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This commit is contained in:
Peter Dimov
2021-10-17 08:15:10 +03:00
parent f05e8840d2
commit bb99a2b1ae
2 changed files with 3 additions and 60 deletions
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49
include/boost/container_hash/detail/limits.hpp
View File

@@ -1,28 +1,11 @@
// Copyright 2005-2009 Daniel James. // Copyright 2005-2009 Daniel James.
// Distributed under the Boost Software License, Version 1.0. (See accompanying // Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// On some platforms std::limits gives incorrect values for long double.
// This tries to work around them.
#if !defined(BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER) #ifndef BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER
#define BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER #define BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER
#include <boost/config.hpp> #include <limits>
#if defined(BOOST_HAS_PRAGMA_ONCE)
#pragma once
#endif
#include <boost/limits.hpp>
// On OpenBSD, numeric_limits is not reliable for long doubles, but
// the macros defined in <float.h> are and support long double when STLport
// doesn't.
#if defined(__OpenBSD__) || defined(_STLP_NO_LONG_DOUBLE)
#include <float.h>
#endif
namespace boost namespace boost
{ {
@@ -30,33 +13,7 @@ namespace boost
{ {
template <class T> template <class T>
struct limits : std::numeric_limits<T> {}; struct limits : std::numeric_limits<T> {};
#if defined(__OpenBSD__) || defined(_STLP_NO_LONG_DOUBLE)
template <>
struct limits<long double>
: std::numeric_limits<long double>
{
static long double epsilon() {
return LDBL_EPSILON;
}
static long double (max)() {
return LDBL_MAX;
}
static long double (min)() {
return LDBL_MIN;
}
BOOST_STATIC_CONSTANT(int, digits = LDBL_MANT_DIG);
BOOST_STATIC_CONSTANT(int, max_exponent = LDBL_MAX_EXP);
BOOST_STATIC_CONSTANT(int, min_exponent = LDBL_MIN_EXP);
#if defined(_STLP_NO_LONG_DOUBLE)
BOOST_STATIC_CONSTANT(int, radix = FLT_RADIX);
#endif
};
#endif // __OpenBSD__
} }
} }
#endif #endif // #ifndef BOOST_FUNCTIONAL_HASH_DETAIL_LIMITS_HEADER

14
test/hash_float_test.hpp
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@@ -15,7 +15,6 @@
#include <cmath> #include <cmath>
#include <boost/container_hash/detail/limits.hpp> #include <boost/container_hash/detail/limits.hpp>
#include <boost/container_hash/detail/float_functions.hpp>
#include <boost/config/workaround.hpp> #include <boost/config/workaround.hpp>
#include <iostream> #include <iostream>
@@ -55,19 +54,6 @@ void float_tests(char const* name, T* = 0)
<< boost::hash_detail::limits<std::size_t>::digits << boost::hash_detail::limits<std::size_t>::digits
<< "\n" << "\n"
<< "\n" << "\n"
<< "boost::hash_detail::call_ldexp<T>::float_type = "
<< float_type(static_cast<BOOST_DEDUCED_TYPENAME
boost::hash_detail::call_ldexp<T>::float_type*>(0))
<< "\n"
<< "boost::hash_detail::call_frexp<T>::float_type = "
<< float_type(static_cast<BOOST_DEDUCED_TYPENAME
boost::hash_detail::call_frexp<T>::float_type*>(0))
<< "\n"
<< "boost::hash_detail::select_hash_type<T>::type = "
<< float_type(static_cast<BOOST_DEDUCED_TYPENAME
boost::hash_detail::select_hash_type<T>::type*>(0))
<< "\n"
<< "\n"
; ;
BOOST_HASH_TEST_NAMESPACE::hash<T> x1; BOOST_HASH_TEST_NAMESPACE::hash<T> x1;