FM / 4.4.4

/usr/include/c++/4.4.4/

/usr/include/c++/4.4.4

Name	Size	Mode	Actions
backward/	-	0755	rm
bits/	-	0755	rm
debug/	-	0755	rm
ext/	-	0755	rm
parallel/	-	0755	rm
tr1/	-	0755	rm
tr1_impl/	-	0755	rm
x86_64-redhat-linux/	-	0755	rm
algorithm	2528	0644	edit dl rm
array	1861	0644	edit dl rm
bitset	38246	0644	edit dl rm
c++0x_warning.h	1441	0644	edit dl rm
cassert	1691	0644	edit dl rm
ccomplex	1425	0644	edit dl rm
cctype	2862	0644	edit dl rm
cerrno	1813	0644	edit dl rm
cfenv	1872	0644	edit dl rm
cfloat	2046	0644	edit dl rm
chrono	21125	0644	edit dl rm
cinttypes	2151	0644	edit dl rm
ciso646	1513	0644	edit dl rm
climits	1956	0644	edit dl rm
clocale	1996	0644	edit dl rm
cmath	15560	0644	edit dl rm
complex	42262	0644	edit dl rm
complex.h	1374	0644	edit dl rm
condition_variable	6208	0644	edit dl rm
csetjmp	2040	0644	edit dl rm
csignal	1946	0644	edit dl rm
cstdarg	1935	0644	edit dl rm
cstdatomic	24336	0644	edit dl rm
cstdbool	1412	0644	edit dl rm
cstddef	1830	0644	edit dl rm
cstdint	2374	0644	edit dl rm
cstdio	4812	0644	edit dl rm
cstdlib	5723	0644	edit dl rm
cstring	3261	0644	edit dl rm
ctgmath	1327	0644	edit dl rm
ctime	2211	0644	edit dl rm
cwchar	6538	0644	edit dl rm
cwctype	3294	0644	edit dl rm
cxxabi-forced.h	1631	0644	edit dl rm
cxxabi.h	19106	0644	edit dl rm
deque	2658	0644	edit dl rm
exception	4856	0644	edit dl rm
exception_defines.h	1648	0644	edit dl rm
exception_ptr.h	4355	0644	edit dl rm
fenv.h	1888	0644	edit dl rm
forward_list	1480	0644	edit dl rm
fstream	29267	0644	edit dl rm
functional	2658	0644	edit dl rm
initializer_list	1987	0644	edit dl rm
iomanip	8696	0644	edit dl rm
ios	1658	0644	edit dl rm
iosfwd	6017	0644	edit dl rm
iostream	2654	0644	edit dl rm
istream	28304	0644	edit dl rm
iterator	2639	0644	edit dl rm
limits	45520	0644	edit dl rm
list	2588	0644	edit dl rm
locale	1480	0644	edit dl rm
map	2479	0644	edit dl rm
memory	3356	0644	edit dl rm
mutex	18380	0644	edit dl rm
new	3735	0644	edit dl rm
numeric	2808	0644	edit dl rm
ostream	18442	0644	edit dl rm
queue	2507	0644	edit dl rm
random	2086	0644	edit dl rm
ratio	9176	0644	edit dl rm
regex	2002	0644	edit dl rm
set	2479	0644	edit dl rm
sstream	18876	0644	edit dl rm
stack	2431	0644	edit dl rm
stdatomic.h	7263	0644	edit dl rm
stdexcept	4247	0644	edit dl rm
streambuf	28107	0644	edit dl rm
string	2021	0644	edit dl rm
system_error	9434	0644	edit dl rm
tgmath.h	1368	0644	edit dl rm
thread	6562	0644	edit dl rm
tuple	21068	0644	edit dl rm
typeinfo	7170	0644	edit dl rm
type_traits	17152	0644	edit dl rm
unordered_map	2448	0644	edit dl rm
unordered_set	2448	0644	edit dl rm
utility	3320	0644	edit dl rm
valarray	36486	0644	edit dl rm
vector	2698	0644	edit dl rm

Edit: /usr/include/c++/4.4.4/ratio (9176B)

// 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

cmd: