[gcc] GCC 4.5.0=>4.5.1

gcc/libstdc++-v3/include/std/ratio

Index: gcc/libstdc++-v3/include/std/ratio
diff --git a/gcc/libstdc++-v3/include/std/ratio b/gcc/libstdc++-v3/include/std/ratio
deleted file mode 100644
index f0e8831c5970f1321be29d9da07113b98a462bc4..0000000000000000000000000000000000000000
--- a/gcc/libstdc++-v3/include/std/ratio
+++ /dev/null
@@ -1,303 +0,0 @@
-// ratio -*- C++ -*-
-
-// Copyright (C) 2008, 2009 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the 
-// terms of the GNU General Public License as published by the 
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
-// GNU General Public License for more details.
-
-// Under Section 7 of GPL version 3, you are granted additional
-// permissions described in the GCC Runtime Library Exception, version
-// 3.1, as published by the Free Software Foundation.
-
-// You should have received a copy of the GNU General Public License and
-// a copy of the GCC Runtime Library Exception along with this program;
-// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-// <http://www.gnu.org/licenses/>.
-
-/** @file ratio
- *  This is a Standard C++ Library header.
- */
-
-#ifndef _GLIBCXX_RATIO
-#define _GLIBCXX_RATIO 1
-
-#pragma GCC system_header
-
-#ifndef __GXX_EXPERIMENTAL_CXX0X__
-# include <c++0x_warning.h>
-#else
-
-#include <type_traits>
-#include <cstdint>
-
-#ifdef _GLIBCXX_USE_C99_STDINT_TR1
-
-namespace std
-{
-  /**
-   * @defgroup ratio Rational Arithmetic
-   * @ingroup utilities
-   *
-   * Compile time representation of fininte rational numbers.
-   * @{
-   */
-
-  template<intmax_t _Pn>
-    struct __static_sign
-    : integral_constant<intmax_t, (_Pn < 0) ? -1 : 1>
-    { };
-
-  template<intmax_t _Pn>
-    struct __static_abs
-    : integral_constant<intmax_t, _Pn * __static_sign<_Pn>::value>
-    { };
-
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __static_gcd;
- 
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __static_gcd
-    : __static_gcd<_Qn, (_Pn % _Qn)>
-    { };
-
-  template<intmax_t _Pn>
-    struct __static_gcd<_Pn, 0>
-    : integral_constant<intmax_t, __static_abs<_Pn>::value>
-    { };
-
-  template<intmax_t _Qn>
-    struct __static_gcd<0, _Qn>
-    : integral_constant<intmax_t, __static_abs<_Qn>::value>
-    { };
-
-  // Let c = 2^(half # of bits in an intmax_t)
-  // then we find a1, a0, b1, b0 s.t. N = a1*c + a0, M = b1*c + b0
-  // The multiplication of N and M becomes,
-  // N * M = (a1 * b1)c^2 + (a0 * b1 + b0 * a1)c + a0 * b0
-  // Multiplication is safe if each term and the sum of the terms
-  // is representable by intmax_t.
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __safe_multiply
-    {
-    private:
-      static const uintmax_t __c = uintmax_t(1) << (sizeof(intmax_t) * 4);
-
-      static const uintmax_t __a0 = __static_abs<_Pn>::value % __c;
-      static const uintmax_t __a1 = __static_abs<_Pn>::value / __c;
-      static const uintmax_t __b0 = __static_abs<_Qn>::value % __c;
-      static const uintmax_t __b1 = __static_abs<_Qn>::value / __c;
-
-      static_assert(__a1 == 0 || __b1 == 0, 
-        "overflow in multiplication");
-      static_assert(__a0 * __b1 + __b0 * __a1 < (__c >> 1), 
-        "overflow in multiplication");
-      static_assert(__b0 * __a0 <= __INTMAX_MAX__, 
-        "overflow in multiplication");
-      static_assert((__a0 * __b1 + __b0 * __a1) * __c <= 
-        __INTMAX_MAX__ -  __b0 * __a0, "overflow in multiplication");
-
-    public:
-      static const intmax_t value = _Pn * _Qn;
-    };
-
-  // Helpers for __safe_add
-  template<intmax_t _Pn, intmax_t _Qn, bool>
-    struct __add_overflow_check_impl
-    : integral_constant<bool, (_Pn <= __INTMAX_MAX__ - _Qn)>
-    { };
-
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __add_overflow_check_impl<_Pn, _Qn, false>
-    : integral_constant<bool, (_Pn >= -__INTMAX_MAX__ - _Qn)>
-    { };
-
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __add_overflow_check
-    : __add_overflow_check_impl<_Pn, _Qn, (_Qn >= 0)>
-    { };
-
-  template<intmax_t _Pn, intmax_t _Qn>
-    struct __safe_add
-    {
-      static_assert(__add_overflow_check<_Pn, _Qn>::value != 0, 
-        "overflow in addition");
-
-      static const intmax_t value = _Pn + _Qn;
-    };
-
-  /**
-   *  @brief Provides compile-time rational arithmetic.
-   *
-   *  This class template represents any finite rational number with a
-   *  numerator and denominator representable by compile-time constants of
-   *  type intmax_t. The ratio is simplified when instantiated.
-   *
-   *  For example:
-   *  @code
-   *    std::ratio<7,-21>::num == -1;
-   *    std::ratio<7,-21>::den == 3;
-   *  @endcode
-   *  
-  */
-  template<intmax_t _Num, intmax_t _Den = 1>
-    struct ratio
-    {
-      static_assert(_Den != 0, "denominator cannot be zero");
-      static_assert(_Num >= -__INTMAX_MAX__ && _Den >= -__INTMAX_MAX__,
-		    "out of range");
-
-      // Note: sign(N) * abs(N) == N
-      static const intmax_t num =
-        _Num * __static_sign<_Den>::value / __static_gcd<_Num, _Den>::value;
-
-      static const intmax_t den =
-        __static_abs<_Den>::value / __static_gcd<_Num, _Den>::value;
-    };
-
-  template<intmax_t _Num, intmax_t _Den>
-    const intmax_t ratio<_Num, _Den>::num;
-
-  template<intmax_t _Num, intmax_t _Den>
-    const intmax_t ratio<_Num, _Den>::den;
-
-  /// ratio_add
-  template<typename _R1, typename _R2>
-    struct ratio_add
-    {
-    private:
-      static const intmax_t __gcd =
-        __static_gcd<_R1::den, _R2::den>::value;
-      
-    public:
-      typedef ratio<
-        __safe_add<
-          __safe_multiply<_R1::num, (_R2::den / __gcd)>::value,
-          __safe_multiply<_R2::num, (_R1::den / __gcd)>::value>::value,
-        __safe_multiply<_R1::den, (_R2::den / __gcd)>::value> type;
-    };
-
-  /// ratio_subtract
-  template<typename _R1, typename _R2>
-    struct ratio_subtract
-    {
-      typedef typename ratio_add<
-        _R1,
-        ratio<-_R2::num, _R2::den>>::type type;
-    };
-
-  /// ratio_multiply
-  template<typename _R1, typename _R2>
-    struct ratio_multiply
-    {
-    private:
-      static const intmax_t __gcd1 =
-        __static_gcd<_R1::num, _R2::den>::value;
-      static const intmax_t __gcd2 =
-        __static_gcd<_R2::num, _R1::den>::value;
-
-    public:
-      typedef ratio<
-        __safe_multiply<(_R1::num / __gcd1),
-                        (_R2::num / __gcd2)>::value,
-        __safe_multiply<(_R1::den / __gcd2),
-                        (_R2::den / __gcd1)>::value> type;
-    };
-
-  /// ratio_divide
-  template<typename _R1, typename _R2>
-    struct ratio_divide
-    {
-      static_assert(_R2::num != 0, "division by 0");
-
-      typedef typename ratio_multiply<
-        _R1,
-        ratio<_R2::den, _R2::num>>::type type;
-    };
-
-  /// ratio_equal
-  template<typename _R1, typename _R2>
-    struct ratio_equal
-    : integral_constant<bool, _R1::num == _R2::num && _R1::den == _R2::den>
-    { };
-  
-  /// ratio_not_equal
-  template<typename _R1, typename _R2>
-    struct ratio_not_equal
-    : integral_constant<bool, !ratio_equal<_R1, _R2>::value>
-    { };
-  
-  template<typename _R1, typename _R2>
-    struct __ratio_less_simple_impl
-    : integral_constant<bool,
-			(__safe_multiply<_R1::num, _R2::den>::value
-			 < __safe_multiply<_R2::num, _R1::den>::value)>
-    { };
-
-  // If the denominators are equal or the signs differ, we can just compare
-  // numerators, otherwise fallback to the simple cross-multiply method.
-  template<typename _R1, typename _R2>
-    struct __ratio_less_impl
-    : conditional<(_R1::den == _R2::den
-		   || (__static_sign<_R1::num>::value
-		       != __static_sign<_R2::num>::value)),
-      integral_constant<bool, (_R1::num < _R2::num)>,
-      __ratio_less_simple_impl<_R1, _R2>>::type
-    { };
-
-  /// ratio_less
-  template<typename _R1, typename _R2>
-    struct ratio_less
-    : __ratio_less_impl<_R1, _R2>::type
-    { };
-    
-  /// ratio_less_equal
-  template<typename _R1, typename _R2>
-    struct ratio_less_equal
-    : integral_constant<bool, !ratio_less<_R2, _R1>::value>
-    { };
-  
-  /// ratio_greater
-  template<typename _R1, typename _R2>
-    struct ratio_greater
-    : integral_constant<bool, ratio_less<_R2, _R1>::value>
-    { };
-
-  /// ratio_greater_equal
-  template<typename _R1, typename _R2>
-    struct ratio_greater_equal
-    : integral_constant<bool, !ratio_less<_R1, _R2>::value>
-    { };
-
-  typedef ratio<1,       1000000000000000000> atto;
-  typedef ratio<1,          1000000000000000> femto;
-  typedef ratio<1,             1000000000000> pico;
-  typedef ratio<1,                1000000000> nano;
-  typedef ratio<1,                   1000000> micro;
-  typedef ratio<1,                      1000> milli;
-  typedef ratio<1,                       100> centi;
-  typedef ratio<1,                        10> deci;
-  typedef ratio<                       10, 1> deca;
-  typedef ratio<                      100, 1> hecto;
-  typedef ratio<                     1000, 1> kilo;
-  typedef ratio<                  1000000, 1> mega;
-  typedef ratio<               1000000000, 1> giga;
-  typedef ratio<            1000000000000, 1> tera;
-  typedef ratio<         1000000000000000, 1> peta;
-  typedef ratio<      1000000000000000000, 1> exa;
-
-  // @} group ratio
-}
-
-#endif //_GLIBCXX_USE_C99_STDINT_TR1
-
-#endif //__GXX_EXPERIMENTAL_CXX0X__
-
-#endif //_GLIBCXX_RATIO