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authorRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
commit0efa7c32aaf21a29b42b5926cc116007056843be (patch)
tree882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/detail/lcast_precision.hpp
parent1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff)
downloadswift-0efa7c32aaf21a29b42b5926cc116007056843be.zip
swift-0efa7c32aaf21a29b42b5926cc116007056843be.tar.bz2
Moved some modules into separate git modules.
Diffstat (limited to '3rdParty/Boost/boost/detail/lcast_precision.hpp')
m---------3rdParty/Boost0
-rw-r--r--3rdParty/Boost/boost/detail/lcast_precision.hpp184
2 files changed, 0 insertions, 184 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost
new file mode 160000
+Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79
diff --git a/3rdParty/Boost/boost/detail/lcast_precision.hpp b/3rdParty/Boost/boost/detail/lcast_precision.hpp
deleted file mode 100644
index d40ca21..0000000
--- a/3rdParty/Boost/boost/detail/lcast_precision.hpp
+++ /dev/null
@@ -1,184 +0,0 @@
-// Copyright Alexander Nasonov & Paul A. Bristow 2006.
-
-// Use, modification and distribution are subject to 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)
-
-#ifndef BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-#define BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-
-#include <climits>
-#include <ios>
-#include <limits>
-
-#include <boost/config.hpp>
-#include <boost/integer_traits.hpp>
-
-#ifndef BOOST_NO_IS_ABSTRACT
-// Fix for SF:1358600 - lexical_cast & pure virtual functions & VC 8 STL
-#include <boost/mpl/if.hpp>
-#include <boost/type_traits/is_abstract.hpp>
-#endif
-
-#if defined(BOOST_NO_LIMITS_COMPILE_TIME_CONSTANTS) || \
- (defined(BOOST_MSVC) && (BOOST_MSVC<1310))
-
-#define BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-#endif
-
-#ifdef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-#include <boost/assert.hpp>
-#else
-#include <boost/static_assert.hpp>
-#endif
-
-namespace boost { namespace detail {
-
-class lcast_abstract_stub {};
-
-#ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
-// Calculate an argument to pass to std::ios_base::precision from
-// lexical_cast. See alternative implementation for broken standard
-// libraries in lcast_get_precision below. Keep them in sync, please.
-template<class T>
-struct lcast_precision
-{
-#ifdef BOOST_NO_IS_ABSTRACT
- typedef std::numeric_limits<T> limits; // No fix for SF:1358600.
-#else
- typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
- boost::is_abstract<T>
- , std::numeric_limits<lcast_abstract_stub>
- , std::numeric_limits<T>
- >::type limits;
-#endif
-
- BOOST_STATIC_CONSTANT(bool, use_default_precision =
- !limits::is_specialized || limits::is_exact
- );
-
- BOOST_STATIC_CONSTANT(bool, is_specialized_bin =
- !use_default_precision &&
- limits::radix == 2 && limits::digits > 0
- );
-
- BOOST_STATIC_CONSTANT(bool, is_specialized_dec =
- !use_default_precision &&
- limits::radix == 10 && limits::digits10 > 0
- );
-
- BOOST_STATIC_CONSTANT(std::streamsize, streamsize_max =
- boost::integer_traits<std::streamsize>::const_max
- );
-
- BOOST_STATIC_CONSTANT(unsigned int, precision_dec = limits::digits10 + 1U);
-
- BOOST_STATIC_ASSERT(!is_specialized_dec ||
- precision_dec <= streamsize_max + 0UL
- );
-
- BOOST_STATIC_CONSTANT(unsigned long, precision_bin =
- 2UL + limits::digits * 30103UL / 100000UL
- );
-
- BOOST_STATIC_ASSERT(!is_specialized_bin ||
- (limits::digits + 0UL < ULONG_MAX / 30103UL &&
- precision_bin > limits::digits10 + 0UL &&
- precision_bin <= streamsize_max + 0UL)
- );
-
- BOOST_STATIC_CONSTANT(std::streamsize, value =
- is_specialized_bin ? precision_bin
- : is_specialized_dec ? precision_dec : 6
- );
-};
-#endif
-
-template<class T>
-inline std::streamsize lcast_get_precision(T* = 0)
-{
-#ifndef BOOST_LCAST_NO_COMPILE_TIME_PRECISION
- return lcast_precision<T>::value;
-#else // Follow lcast_precision algorithm at run-time:
-
-#ifdef BOOST_NO_IS_ABSTRACT
- typedef std::numeric_limits<T> limits; // No fix for SF:1358600.
-#else
- typedef BOOST_DEDUCED_TYPENAME boost::mpl::if_<
- boost::is_abstract<T>
- , std::numeric_limits<lcast_abstract_stub>
- , std::numeric_limits<T>
- >::type limits;
-#endif
-
- bool const use_default_precision =
- !limits::is_specialized || limits::is_exact;
-
- if(!use_default_precision)
- { // Includes all built-in floating-point types, float, double ...
- // and UDT types for which digits (significand bits) is defined (not zero)
-
- bool const is_specialized_bin =
- limits::radix == 2 && limits::digits > 0;
- bool const is_specialized_dec =
- limits::radix == 10 && limits::digits10 > 0;
- std::streamsize const streamsize_max =
- (boost::integer_traits<std::streamsize>::max)();
-
- if(is_specialized_bin)
- { // Floating-point types with
- // limits::digits defined by the specialization.
-
- unsigned long const digits = limits::digits;
- unsigned long const precision = 2UL + digits * 30103UL / 100000UL;
- // unsigned long is selected because it is at least 32-bits
- // and thus ULONG_MAX / 30103UL is big enough for all types.
- BOOST_ASSERT(
- digits < ULONG_MAX / 30103UL &&
- precision > limits::digits10 + 0UL &&
- precision <= streamsize_max + 0UL
- );
- return precision;
- }
- else if(is_specialized_dec)
- { // Decimal Floating-point type, most likely a User Defined Type
- // rather than a real floating-point hardware type.
- unsigned int const precision = limits::digits10 + 1U;
- BOOST_ASSERT(precision <= streamsize_max + 0UL);
- return precision;
- }
- }
-
- // Integral type (for which precision has no effect)
- // or type T for which limits is NOT specialized,
- // so assume stream precision remains the default 6 decimal digits.
- // Warning: if your User-defined Floating-point type T is NOT specialized,
- // then you may lose accuracy by only using 6 decimal digits.
- // To avoid this, you need to specialize T with either
- // radix == 2 and digits == the number of significand bits,
- // OR
- // radix = 10 and digits10 == the number of decimal digits.
-
- return 6;
-#endif
-}
-
-template<class T>
-inline void lcast_set_precision(std::ios_base& stream, T*)
-{
- stream.precision(lcast_get_precision<T>());
-}
-
-template<class Source, class Target>
-inline void lcast_set_precision(std::ios_base& stream, Source*, Target*)
-{
- std::streamsize const s = lcast_get_precision((Source*)0);
- std::streamsize const t = lcast_get_precision((Target*)0);
- stream.precision(s > t ? s : t);
-}
-
-}}
-
-#endif // BOOST_DETAIL_LCAST_PRECISION_HPP_INCLUDED
-