summaryrefslogtreecommitdiffstats
path: root/contrib/src/boost/integer
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/src/boost/integer')
-rw-r--r--contrib/src/boost/integer/integer_log2.hpp224
-rw-r--r--contrib/src/boost/integer/integer_mask.hpp252
-rw-r--r--contrib/src/boost/integer/static_log2.hpp254
3 files changed, 365 insertions, 365 deletions
diff --git a/contrib/src/boost/integer/integer_log2.hpp b/contrib/src/boost/integer/integer_log2.hpp
index 411d85e..8b34ce7 100644
--- a/contrib/src/boost/integer/integer_log2.hpp
+++ b/contrib/src/boost/integer/integer_log2.hpp
@@ -1,112 +1,112 @@
-// -----------------------------------------------------------
-// integer_log2.hpp
-//
-// Gives the integer part of the logarithm, in base 2, of a
-// given number. Behavior is undefined if the argument is <= 0.
-//
-// Copyright (c) 2003-2004, 2008 Gennaro Prota
-//
-// 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)
-//
-// -----------------------------------------------------------
-
-#ifndef BOOST_INTEGER_INTEGER_LOG2_HPP
-#define BOOST_INTEGER_INTEGER_LOG2_HPP
-
-#include <assert.h>
-#ifdef __BORLANDC__
-#include <climits>
-#endif
-#include <boost/limits.hpp>
-#include <boost/config.hpp>
-
-
-namespace boost {
- namespace detail {
-
- template <typename T>
- int integer_log2_impl(T x, int n) {
-
- int result = 0;
-
- while (x != 1) {
-
- const T t = static_cast<T>(x >> n);
- if (t) {
- result += n;
- x = t;
- }
- n /= 2;
-
- }
-
- return result;
- }
-
-
-
- // helper to find the maximum power of two
- // less than p (more involved than necessary,
- // to avoid PTS)
- //
- template <int p, int n>
- struct max_pow2_less {
-
- enum { c = 2*n < p };
-
- BOOST_STATIC_CONSTANT(int, value =
- c ? (max_pow2_less< c*p, 2*c*n>::value) : n);
-
- };
-
- template <>
- struct max_pow2_less<0, 0> {
-
- BOOST_STATIC_CONSTANT(int, value = 0);
- };
-
- // this template is here just for Borland :(
- // we could simply rely on numeric_limits but sometimes
- // Borland tries to use numeric_limits<const T>, because
- // of its usual const-related problems in argument deduction
- // - gps
- template <typename T>
- struct width {
-
-#ifdef __BORLANDC__
- BOOST_STATIC_CONSTANT(int, value = sizeof(T) * CHAR_BIT);
-#else
- BOOST_STATIC_CONSTANT(int, value = (std::numeric_limits<T>::digits));
-#endif
-
- };
-
- } // detail
-
-
- // ---------
- // integer_log2
- // ---------------
- //
- template <typename T>
- int integer_log2(T x) {
-
- assert(x > 0);
-
- const int n = detail::max_pow2_less<
- detail::width<T> :: value, 4
- > :: value;
-
- return detail::integer_log2_impl(x, n);
-
- }
-
-
-
-}
-
-
-
-#endif // include guard
+// -----------------------------------------------------------
+// integer_log2.hpp
+//
+// Gives the integer part of the logarithm, in base 2, of a
+// given number. Behavior is undefined if the argument is <= 0.
+//
+// Copyright (c) 2003-2004, 2008 Gennaro Prota
+//
+// 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)
+//
+// -----------------------------------------------------------
+
+#ifndef BOOST_INTEGER_INTEGER_LOG2_HPP
+#define BOOST_INTEGER_INTEGER_LOG2_HPP
+
+#include <assert.h>
+#ifdef __BORLANDC__
+#include <climits>
+#endif
+#include <boost/limits.hpp>
+#include <boost/config.hpp>
+
+
+namespace boost {
+ namespace detail {
+
+ template <typename T>
+ int integer_log2_impl(T x, int n) {
+
+ int result = 0;
+
+ while (x != 1) {
+
+ const T t = static_cast<T>(x >> n);
+ if (t) {
+ result += n;
+ x = t;
+ }
+ n /= 2;
+
+ }
+
+ return result;
+ }
+
+
+
+ // helper to find the maximum power of two
+ // less than p (more involved than necessary,
+ // to avoid PTS)
+ //
+ template <int p, int n>
+ struct max_pow2_less {
+
+ enum { c = 2*n < p };
+
+ BOOST_STATIC_CONSTANT(int, value =
+ c ? (max_pow2_less< c*p, 2*c*n>::value) : n);
+
+ };
+
+ template <>
+ struct max_pow2_less<0, 0> {
+
+ BOOST_STATIC_CONSTANT(int, value = 0);
+ };
+
+ // this template is here just for Borland :(
+ // we could simply rely on numeric_limits but sometimes
+ // Borland tries to use numeric_limits<const T>, because
+ // of its usual const-related problems in argument deduction
+ // - gps
+ template <typename T>
+ struct width {
+
+#ifdef __BORLANDC__
+ BOOST_STATIC_CONSTANT(int, value = sizeof(T) * CHAR_BIT);
+#else
+ BOOST_STATIC_CONSTANT(int, value = (std::numeric_limits<T>::digits));
+#endif
+
+ };
+
+ } // detail
+
+
+ // ---------
+ // integer_log2
+ // ---------------
+ //
+ template <typename T>
+ int integer_log2(T x) {
+
+ assert(x > 0);
+
+ const int n = detail::max_pow2_less<
+ detail::width<T> :: value, 4
+ > :: value;
+
+ return detail::integer_log2_impl(x, n);
+
+ }
+
+
+
+}
+
+
+
+#endif // include guard
diff --git a/contrib/src/boost/integer/integer_mask.hpp b/contrib/src/boost/integer/integer_mask.hpp
index ee4902d..2acf7f7 100644
--- a/contrib/src/boost/integer/integer_mask.hpp
+++ b/contrib/src/boost/integer/integer_mask.hpp
@@ -1,126 +1,126 @@
-// Boost integer/integer_mask.hpp header file ------------------------------//
-
-// (C) Copyright Daryle Walker 2001.
-// 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)
-
-// See http://www.boost.org for updates, documentation, and revision history.
-
-#ifndef BOOST_INTEGER_INTEGER_MASK_HPP
-#define BOOST_INTEGER_INTEGER_MASK_HPP
-
-#include <boost/integer_fwd.hpp> // self include
-
-#include <boost/config.hpp> // for BOOST_STATIC_CONSTANT
-#include <boost/integer.hpp> // for boost::uint_t
-
-#include <climits> // for UCHAR_MAX, etc.
-#include <cstddef> // for std::size_t
-
-#include <boost/limits.hpp> // for std::numeric_limits
-
-//
-// We simply cannot include this header on gcc without getting copious warnings of the kind:
-//
-// boost/integer/integer_mask.hpp:93:35: warning: use of C99 long long integer constant
-//
-// And yet there is no other reasonable implementation, so we declare this a system header
-// to suppress these warnings.
-//
-#if defined(__GNUC__) && (__GNUC__ >= 4)
-#pragma GCC system_header
-#endif
-
-namespace boost
-{
-
-
-// Specified single-bit mask class declaration -----------------------------//
-// (Lowest bit starts counting at 0.)
-
-template < std::size_t Bit >
-struct high_bit_mask_t
-{
- typedef typename uint_t<(Bit + 1)>::least least;
- typedef typename uint_t<(Bit + 1)>::fast fast;
-
- BOOST_STATIC_CONSTANT( least, high_bit = (least( 1u ) << Bit) );
- BOOST_STATIC_CONSTANT( fast, high_bit_fast = (fast( 1u ) << Bit) );
-
- BOOST_STATIC_CONSTANT( std::size_t, bit_position = Bit );
-
-}; // boost::high_bit_mask_t
-
-
-// Specified bit-block mask class declaration ------------------------------//
-// Makes masks for the lowest N bits
-// (Specializations are needed when N fills up a type.)
-
-template < std::size_t Bits >
-struct low_bits_mask_t
-{
- typedef typename uint_t<Bits>::least least;
- typedef typename uint_t<Bits>::fast fast;
-
- BOOST_STATIC_CONSTANT( least, sig_bits = (~( ~(least( 0u )) << Bits )) );
- BOOST_STATIC_CONSTANT( fast, sig_bits_fast = fast(sig_bits) );
-
- BOOST_STATIC_CONSTANT( std::size_t, bit_count = Bits );
-
-}; // boost::low_bits_mask_t
-
-
-#define BOOST_LOW_BITS_MASK_SPECIALIZE( Type ) \
- template < > struct low_bits_mask_t< std::numeric_limits<Type>::digits > { \
- typedef std::numeric_limits<Type> limits_type; \
- typedef uint_t<limits_type::digits>::least least; \
- typedef uint_t<limits_type::digits>::fast fast; \
- BOOST_STATIC_CONSTANT( least, sig_bits = (~( least(0u) )) ); \
- BOOST_STATIC_CONSTANT( fast, sig_bits_fast = fast(sig_bits) ); \
- BOOST_STATIC_CONSTANT( std::size_t, bit_count = limits_type::digits ); \
- }
-
-#ifdef BOOST_MSVC
-#pragma warning(push)
-#pragma warning(disable:4245) // 'initializing' : conversion from 'int' to 'const boost::low_bits_mask_t<8>::least', signed/unsigned mismatch
-#endif
-
-BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned char );
-
-#if USHRT_MAX > UCHAR_MAX
-BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned short );
-#endif
-
-#if UINT_MAX > USHRT_MAX
-BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned int );
-#endif
-
-#if ULONG_MAX > UINT_MAX
-BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned long );
-#endif
-
-#if defined(BOOST_HAS_LONG_LONG)
- #if ((defined(ULLONG_MAX) && (ULLONG_MAX > ULONG_MAX)) ||\
- (defined(ULONG_LONG_MAX) && (ULONG_LONG_MAX > ULONG_MAX)) ||\
- (defined(ULONGLONG_MAX) && (ULONGLONG_MAX > ULONG_MAX)) ||\
- (defined(_ULLONG_MAX) && (_ULLONG_MAX > ULONG_MAX)))
- BOOST_LOW_BITS_MASK_SPECIALIZE( boost::ulong_long_type );
- #endif
-#elif defined(BOOST_HAS_MS_INT64)
- #if 18446744073709551615ui64 > ULONG_MAX
- BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned __int64 );
- #endif
-#endif
-
-#ifdef BOOST_MSVC
-#pragma warning(pop)
-#endif
-
-#undef BOOST_LOW_BITS_MASK_SPECIALIZE
-
-
-} // namespace boost
-
-
-#endif // BOOST_INTEGER_INTEGER_MASK_HPP
+// Boost integer/integer_mask.hpp header file ------------------------------//
+
+// (C) Copyright Daryle Walker 2001.
+// 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)
+
+// See http://www.boost.org for updates, documentation, and revision history.
+
+#ifndef BOOST_INTEGER_INTEGER_MASK_HPP
+#define BOOST_INTEGER_INTEGER_MASK_HPP
+
+#include <boost/integer_fwd.hpp> // self include
+
+#include <boost/config.hpp> // for BOOST_STATIC_CONSTANT
+#include <boost/integer.hpp> // for boost::uint_t
+
+#include <climits> // for UCHAR_MAX, etc.
+#include <cstddef> // for std::size_t
+
+#include <boost/limits.hpp> // for std::numeric_limits
+
+//
+// We simply cannot include this header on gcc without getting copious warnings of the kind:
+//
+// boost/integer/integer_mask.hpp:93:35: warning: use of C99 long long integer constant
+//
+// And yet there is no other reasonable implementation, so we declare this a system header
+// to suppress these warnings.
+//
+#if defined(__GNUC__) && (__GNUC__ >= 4)
+#pragma GCC system_header
+#endif
+
+namespace boost
+{
+
+
+// Specified single-bit mask class declaration -----------------------------//
+// (Lowest bit starts counting at 0.)
+
+template < std::size_t Bit >
+struct high_bit_mask_t
+{
+ typedef typename uint_t<(Bit + 1)>::least least;
+ typedef typename uint_t<(Bit + 1)>::fast fast;
+
+ BOOST_STATIC_CONSTANT( least, high_bit = (least( 1u ) << Bit) );
+ BOOST_STATIC_CONSTANT( fast, high_bit_fast = (fast( 1u ) << Bit) );
+
+ BOOST_STATIC_CONSTANT( std::size_t, bit_position = Bit );
+
+}; // boost::high_bit_mask_t
+
+
+// Specified bit-block mask class declaration ------------------------------//
+// Makes masks for the lowest N bits
+// (Specializations are needed when N fills up a type.)
+
+template < std::size_t Bits >
+struct low_bits_mask_t
+{
+ typedef typename uint_t<Bits>::least least;
+ typedef typename uint_t<Bits>::fast fast;
+
+ BOOST_STATIC_CONSTANT( least, sig_bits = (~( ~(least( 0u )) << Bits )) );
+ BOOST_STATIC_CONSTANT( fast, sig_bits_fast = fast(sig_bits) );
+
+ BOOST_STATIC_CONSTANT( std::size_t, bit_count = Bits );
+
+}; // boost::low_bits_mask_t
+
+
+#define BOOST_LOW_BITS_MASK_SPECIALIZE( Type ) \
+ template < > struct low_bits_mask_t< std::numeric_limits<Type>::digits > { \
+ typedef std::numeric_limits<Type> limits_type; \
+ typedef uint_t<limits_type::digits>::least least; \
+ typedef uint_t<limits_type::digits>::fast fast; \
+ BOOST_STATIC_CONSTANT( least, sig_bits = (~( least(0u) )) ); \
+ BOOST_STATIC_CONSTANT( fast, sig_bits_fast = fast(sig_bits) ); \
+ BOOST_STATIC_CONSTANT( std::size_t, bit_count = limits_type::digits ); \
+ }
+
+#ifdef BOOST_MSVC
+#pragma warning(push)
+#pragma warning(disable:4245) // 'initializing' : conversion from 'int' to 'const boost::low_bits_mask_t<8>::least', signed/unsigned mismatch
+#endif
+
+BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned char );
+
+#if USHRT_MAX > UCHAR_MAX
+BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned short );
+#endif
+
+#if UINT_MAX > USHRT_MAX
+BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned int );
+#endif
+
+#if ULONG_MAX > UINT_MAX
+BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned long );
+#endif
+
+#if defined(BOOST_HAS_LONG_LONG)
+ #if ((defined(ULLONG_MAX) && (ULLONG_MAX > ULONG_MAX)) ||\
+ (defined(ULONG_LONG_MAX) && (ULONG_LONG_MAX > ULONG_MAX)) ||\
+ (defined(ULONGLONG_MAX) && (ULONGLONG_MAX > ULONG_MAX)) ||\
+ (defined(_ULLONG_MAX) && (_ULLONG_MAX > ULONG_MAX)))
+ BOOST_LOW_BITS_MASK_SPECIALIZE( boost::ulong_long_type );
+ #endif
+#elif defined(BOOST_HAS_MS_INT64)
+ #if 18446744073709551615ui64 > ULONG_MAX
+ BOOST_LOW_BITS_MASK_SPECIALIZE( unsigned __int64 );
+ #endif
+#endif
+
+#ifdef BOOST_MSVC
+#pragma warning(pop)
+#endif
+
+#undef BOOST_LOW_BITS_MASK_SPECIALIZE
+
+
+} // namespace boost
+
+
+#endif // BOOST_INTEGER_INTEGER_MASK_HPP
diff --git a/contrib/src/boost/integer/static_log2.hpp b/contrib/src/boost/integer/static_log2.hpp
index 2d3b8c0..56c7a00 100644
--- a/contrib/src/boost/integer/static_log2.hpp
+++ b/contrib/src/boost/integer/static_log2.hpp
@@ -1,127 +1,127 @@
-// -------------- Boost static_log2.hpp header file ----------------------- //
-//
-// Copyright (C) 2001 Daryle Walker.
-// Copyright (C) 2003 Vesa Karvonen.
-// Copyright (C) 2003 Gennaro Prota.
-//
-// 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)
-//
-// ---------------------------------------------------
-// See http://www.boost.org/libs/integer for documentation.
-// ------------------------------------------------------------------------- //
-
-
-#ifndef BOOST_INTEGER_STATIC_LOG2_HPP
-#define BOOST_INTEGER_STATIC_LOG2_HPP
-
-#include "boost/integer_fwd.hpp" // for boost::intmax_t
-
-namespace boost {
-
- namespace detail {
-
- namespace static_log2_impl {
-
- // choose_initial_n<>
- //
- // Recursively doubles its integer argument, until it
- // becomes >= of the "width" (C99, 6.2.6.2p4) of
- // static_log2_argument_type.
- //
- // Used to get the maximum power of two less then the width.
- //
- // Example: if on your platform argument_type has 48 value
- // bits it yields n=32.
- //
- // It's easy to prove that, starting from such a value
- // of n, the core algorithm works correctly for any width
- // of static_log2_argument_type and that recursion always
- // terminates with x = 1 and n = 0 (see the algorithm's
- // invariant).
-
- typedef boost::static_log2_argument_type argument_type;
- typedef boost::static_log2_result_type result_type;
-
- template <result_type n>
- struct choose_initial_n {
-
- BOOST_STATIC_CONSTANT(bool, c = (argument_type(1) << n << n) != 0);
- BOOST_STATIC_CONSTANT(
- result_type,
- value = !c*n + choose_initial_n<2*c*n>::value
- );
-
- };
-
- template <>
- struct choose_initial_n<0> {
- BOOST_STATIC_CONSTANT(result_type, value = 0);
- };
-
-
-
- // start computing from n_zero - must be a power of two
- const result_type n_zero = 16;
- const result_type initial_n = choose_initial_n<n_zero>::value;
-
- // static_log2_impl<>
- //
- // * Invariant:
- // 2n
- // 1 <= x && x < 2 at the start of each recursion
- // (see also choose_initial_n<>)
- //
- // * Type requirements:
- //
- // argument_type maybe any unsigned type with at least n_zero + 1
- // value bits. (Note: If larger types will be standardized -e.g.
- // unsigned long long- then the argument_type typedef can be
- // changed without affecting the rest of the code.)
- //
-
- template <argument_type x, result_type n = initial_n>
- struct static_log2_impl {
-
- BOOST_STATIC_CONSTANT(bool, c = (x >> n) > 0); // x >= 2**n ?
- BOOST_STATIC_CONSTANT(
- result_type,
- value = c*n + (static_log2_impl< (x>>c*n), n/2 >::value)
- );
-
- };
-
- template <>
- struct static_log2_impl<1, 0> {
- BOOST_STATIC_CONSTANT(result_type, value = 0);
- };
-
- }
- } // detail
-
-
-
- // --------------------------------------
- // static_log2<x>
- // ----------------------------------------
-
- template <static_log2_argument_type x>
- struct static_log2 {
-
- BOOST_STATIC_CONSTANT(
- static_log2_result_type,
- value = detail::static_log2_impl::static_log2_impl<x>::value
- );
-
- };
-
-
- template <>
- struct static_log2<0> { };
-
-}
-
-
-
-#endif // include guard
+// -------------- Boost static_log2.hpp header file ----------------------- //
+//
+// Copyright (C) 2001 Daryle Walker.
+// Copyright (C) 2003 Vesa Karvonen.
+// Copyright (C) 2003 Gennaro Prota.
+//
+// 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)
+//
+// ---------------------------------------------------
+// See http://www.boost.org/libs/integer for documentation.
+// ------------------------------------------------------------------------- //
+
+
+#ifndef BOOST_INTEGER_STATIC_LOG2_HPP
+#define BOOST_INTEGER_STATIC_LOG2_HPP
+
+#include "boost/integer_fwd.hpp" // for boost::intmax_t
+
+namespace boost {
+
+ namespace detail {
+
+ namespace static_log2_impl {
+
+ // choose_initial_n<>
+ //
+ // Recursively doubles its integer argument, until it
+ // becomes >= of the "width" (C99, 6.2.6.2p4) of
+ // static_log2_argument_type.
+ //
+ // Used to get the maximum power of two less then the width.
+ //
+ // Example: if on your platform argument_type has 48 value
+ // bits it yields n=32.
+ //
+ // It's easy to prove that, starting from such a value
+ // of n, the core algorithm works correctly for any width
+ // of static_log2_argument_type and that recursion always
+ // terminates with x = 1 and n = 0 (see the algorithm's
+ // invariant).
+
+ typedef boost::static_log2_argument_type argument_type;
+ typedef boost::static_log2_result_type result_type;
+
+ template <result_type n>
+ struct choose_initial_n {
+
+ BOOST_STATIC_CONSTANT(bool, c = (argument_type(1) << n << n) != 0);
+ BOOST_STATIC_CONSTANT(
+ result_type,
+ value = !c*n + choose_initial_n<2*c*n>::value
+ );
+
+ };
+
+ template <>
+ struct choose_initial_n<0> {
+ BOOST_STATIC_CONSTANT(result_type, value = 0);
+ };
+
+
+
+ // start computing from n_zero - must be a power of two
+ const result_type n_zero = 16;
+ const result_type initial_n = choose_initial_n<n_zero>::value;
+
+ // static_log2_impl<>
+ //
+ // * Invariant:
+ // 2n
+ // 1 <= x && x < 2 at the start of each recursion
+ // (see also choose_initial_n<>)
+ //
+ // * Type requirements:
+ //
+ // argument_type maybe any unsigned type with at least n_zero + 1
+ // value bits. (Note: If larger types will be standardized -e.g.
+ // unsigned long long- then the argument_type typedef can be
+ // changed without affecting the rest of the code.)
+ //
+
+ template <argument_type x, result_type n = initial_n>
+ struct static_log2_impl {
+
+ BOOST_STATIC_CONSTANT(bool, c = (x >> n) > 0); // x >= 2**n ?
+ BOOST_STATIC_CONSTANT(
+ result_type,
+ value = c*n + (static_log2_impl< (x>>c*n), n/2 >::value)
+ );
+
+ };
+
+ template <>
+ struct static_log2_impl<1, 0> {
+ BOOST_STATIC_CONSTANT(result_type, value = 0);
+ };
+
+ }
+ } // detail
+
+
+
+ // --------------------------------------
+ // static_log2<x>
+ // ----------------------------------------
+
+ template <static_log2_argument_type x>
+ struct static_log2 {
+
+ BOOST_STATIC_CONSTANT(
+ static_log2_result_type,
+ value = detail::static_log2_impl::static_log2_impl<x>::value
+ );
+
+ };
+
+
+ template <>
+ struct static_log2<0> { };
+
+}
+
+
+
+#endif // include guard