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random (mersenne_twister<>::operator==, [...]): Implement.

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2006-06-06  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/random (mersenne_twister<>::operator==,
	operator!=, operator<<, operator>>): Implement.
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/equal.cc: New.	
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/not_equal.cc: Likewise.
	* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
	operators/serialize.cc: Likewise.

	* include/tr1/random (subtract_with_carry<>::operator==): Fix,
	compare the whole state; use std::equal.

	* include/tr1/random: Minor formatting and style changes.

From-SVN: r114459
This commit is contained in:
Paolo Carlini 2006-06-07 01:50:09 +00:00 committed by Paolo Carlini
parent efbd5a9431
commit d95c1c488a
5 changed files with 293 additions and 54 deletions
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16
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,19 @@
2006-06-06 Paolo Carlini <pcarlini@suse.de>
* include/tr1/random (mersenne_twister<>::operator==,
operator!=, operator<<, operator>>): Implement.
* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
operators/equal.cc: New.
* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
operators/not_equal.cc: Likewise.
* testsuite/tr1/5_numerical_facilities/random/mersenne_twister/
operators/serialize.cc: Likewise.
* include/tr1/random (subtract_with_carry<>::operator==): Fix,
compare the whole state; use std::equal.
* include/tr1/random: Minor formatting and style changes.
2006-06-06 Benjamin Kosnik <bkoz@redhat.com>
* testsuite/tr1/5_numerical_facilies: Move to...

172
libstdc++-v3/include/tr1/random
View File

@ -517,6 +517,76 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
result_type
operator()();
/**
* Compares two % mersenne_twister random number generator objects of
* the same type for equality.
*
* @param __lhs A % mersenne_twister random number generator object.
* @param __rhs Another % mersenne_twister random number generator
* object.
*
* @returns true if the two objects are equal, false otherwise.
*/
friend bool
operator==(const mersenne_twister& __lhs,
const mersenne_twister& __rhs)
{ return std::equal(__lhs._M_x, __lhs._M_x + state_size, __rhs._M_x); }
/**
* Compares two % mersenne_twister random number generator objects of
* the same type for inequality.
*
* @param __lhs A % mersenne_twister random number generator object.
* @param __rhs Another % mersenne_twister random number generator
* object.
*
* @returns true if the two objects are not equal, false otherwise.
*/
friend bool
operator!=(const mersenne_twister& __lhs,
const mersenne_twister& __rhs)
{ return !(__lhs == __rhs); }
/**
* Inserts the current state of a % mersenne_twister random number
* generator engine @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A % mersenne_twister random number generator engine.
*
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
const mersenne_twister& __x)
{
std::copy(__x._M_x, __x._M_x + state_size,
std::ostream_iterator<_UIntType>(__os, " "));
return __os;
}
/**
* Extracts the current state of a % mersenne_twister random number
* generator engine @p __x from the input stream @p __is.
*
* @param __is An input stream.
* @param __x A % mersenne_twister random number generator engine.
*
* @returns The input stream with the state of @p __x extracted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is,
mersenne_twister& __x)
{
for (int __i = 0; __i < state_size; ++__i)
__is >> __x._M_x[__i];
return __is;
}
private:
template<class _Gen>
void
@ -669,10 +739,7 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
friend bool
operator==(const subtract_with_carry& __lhs,
const subtract_with_carry& __rhs)
{
return ((__lhs._M_x[0] == __rhs._M_x[0])
&& (__lhs._M_x[__r - 1] == __rhs._M_x[__r - 1]));
}
{ return std::equal(__lhs._M_x, __lhs._M_x + long_lag, __rhs._M_x); }
/**
* Compares two % subtract_with_carry random number generator objects of
@ -691,40 +758,40 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts the current state of a % subtract_with_carry random number
* genator engine @p x into the output stream @p __os.
* generator engine @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A % subtract_with_carry random number generator engine.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
operator<<(basic_ostream<_CharT, _Traits>& __os,
const subtract_with_carry& __x)
{
std::copy(__x._M_x, __x._M_x + __r,
std::copy(__x._M_x, __x._M_x + long_lag,
std::ostream_iterator<_IntType>(__os, " "));
return __os << __x._M_carry;
}
/**
* Extracts the current state of a % subtract_with_carry random number
* gerator engine @p x from the input stream @p __is.
* generator engine @p __x from the input stream @p __is.
*
* @param __is An input stream.
* @param __x A % subtract_with_carry random number generator engine.
*
* @returns The input stream with the state of @p x extracted or in an
* error state.
* @returns The input stream with the state of @p __x extracted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
operator>>(basic_istream<_CharT, _Traits>& __is,
subtract_with_carry& __x)
{
for (int __i = 0; __i < __r; ++__i)
for (int __i = 0; __i < long_lag; ++__i)
__is >> __x._M_x[__i];
__is >> __x._M_carry;
return __is;
@ -865,10 +932,7 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
*/
friend bool
operator==(const discard_block& __lhs, const discard_block& __rhs)
{
return ((__lhs._M_b == __rhs._M_b)
&& (__lhs._M_n == __rhs._M_n));
}
{ return (__lhs._M_b == __rhs._M_b) && (__lhs._M_n == __rhs._M_n); }
/**
* Compares two %discard_block random number generator objects of
@ -886,13 +950,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts the current state of a %discard_block random number
* genator engine @p x into the output stream @p __os.
* generator engine @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A %discard_block random number generator engine.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -902,13 +966,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts the current state of a % subtract_with_carry random number
* gerator engine @p x from the input stream @p __is.
* generator engine @p __x from the input stream @p __is.
*
* @param __is An input stream.
* @param __x A %discard_block random number generator engine.
*
* @returns The input stream with the state of @p x extracted or in an
* error state.
* @returns The input stream with the state of @p __x extracted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1035,7 +1099,7 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
operator==(const xor_combine& __lhs, const xor_combine& __rhs)
{
return (__lhs.base1() == __rhs.base1())
&& (__lhs.base2() == __rhs.base2());
&& (__lhs.base2() == __rhs.base2());
}
/**
@ -1054,13 +1118,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts the current state of a %xor_combine random number
* genator engine @p x into the output stream @p __os.
* generator engine @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A %xor_combine random number generator engine.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1070,13 +1134,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts the current state of a %xor_combine random number
* gerator engine @p x from the input stream @p __is.
* generator engine @p __x from the input stream @p __is.
*
* @param __is An input stream.
* @param __x A %xor_combine random number generator engine.
*
* @returns The input stream with the state of @p x extracted or in an
* error state.
* @returns The input stream with the state of @p __x extracted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1199,14 +1263,14 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
{ return __urng() % __n; }
/**
* Inserts a %uniform_int random number distribution @p x into the
* Inserts a %uniform_int random number distribution @p __x into the
* output stream @p os.
*
* @param __os An output stream.
* @param __x A %uniform_int random number distribution.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1216,12 +1280,12 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts a %unform_int random number distribution
* @p u from the input stream @p __is.
* @p __u from the input stream @p __is.
*
* @param __is An input stream.
* @param __u A %uniform_int random number generator engine.
*
* @returns The input stream with @p u extracted or in an error state.
* @returns The input stream with @p __u extracted or in an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1303,13 +1367,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts a %bernoulli_distribution random number distribution
* @p x into the output stream @p __os.
* @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A %bernoulli_distribution random number distribution.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1319,12 +1383,12 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts a %bernoulli_distribution random number distribution
* @p u from the input stream @p __is.
* @p __u from the input stream @p __is.
*
* @param __is An input stream.
* @param __u A %bernoulli_distribution random number generator engine.
*
* @returns The input stream with @p u extracted or in an error state.
* @returns The input stream with @p __u extracted or in an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1393,13 +1457,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts a %geometric_distribution random number distribution
* @p x into the output stream @p __os.
* @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A %geometric_distribution random number distribution.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1409,12 +1473,12 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts a %geometric_distribution random number distribution
* @p u from the input stream @p __is.
* @p __u from the input stream @p __is.
*
* @param __is An input stream.
* @param __u A %geometric_distribution random number generator engine.
*
* @returns The input stream with @p u extracted or in an error state.
* @returns The input stream with @p __u extracted or in an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1479,14 +1543,14 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
{ return (__urng() * (max() - min())) + min(); }
/**
* Inserts a %uniform_real random number distribution @p x into the
* Inserts a %uniform_real random number distribution @p __x into the
* output stream @p __os.
*
* @param __os An output stream.
* @param __x A %uniform_real random number distribution.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1496,12 +1560,12 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts a %unform_real random number distribution
* @p u from the input stream @p __is.
* @p __u from the input stream @p __is.
*
* @param __is An input stream.
* @param __u A %uniform_real random number generator engine.
*
* @returns The input stream with @p u extracted or in an error state.
* @returns The input stream with @p __u extracted or in an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&
@ -1569,13 +1633,13 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Inserts a %exponential_distribution random number distribution
* @p x into the output stream @p __os.
* @p __x into the output stream @p __os.
*
* @param __os An output stream.
* @param __x A %exponential_distribution random number distribution.
*
* @returns The output stream with the state of @p x inserted or in an
* error state.
* @returns The output stream with the state of @p __x inserted or in
* an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_ostream<_CharT, _Traits>&
@ -1585,12 +1649,12 @@ _GLIBCXX_BEGIN_NAMESPACE(tr1)
/**
* Extracts a %exponential_distribution random number distribution
* @p u from the input stream @p __is.
* @p __u from the input stream @p __is.
*
* @param __is An input stream.
* @param __u A %exponential_distribution random number generator engine.
*
* @returns The input stream with @p u extracted or in an error state.
* @returns The input stream with @p __u extracted or in an error state.
*/
template<typename _CharT, typename _Traits>
friend basic_istream<_CharT, _Traits>&

53
libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/equal.cc Normal file
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@ -0,0 +1,53 @@
// 2006-06-06 Paolo Carlini <pcarlini@suse.de>
//
// Copyright (C) 2006 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 2, 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.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
// 5.1.1 Table 16
#include <tr1/random>
#include <testsuite_hooks.h>
void
test01()
{
bool test __attribute__((unused)) = true;
using namespace std::tr1;
mersenne_twister<
unsigned long, 32, 624, 397, 31,
0x9908b0dful, 11, 7,
0x9d2c5680ul, 15,
0xefc60000ul, 18> u, v;
VERIFY( u == v );
for (int i = 0; i < 100; ++i)
{
u();
v();
}
VERIFY( u == v );
}
int main()
{
test01();
return 0;
}

52
libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/not_equal.cc Normal file
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@ -0,0 +1,52 @@
// 2006-06-06 Paolo Carlini <pcarlini@suse.de>
//
// Copyright (C) 2006 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 2, 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.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
// 5.1.1 Table 16
#include <tr1/random>
#include <testsuite_hooks.h>
void
test01()
{
bool test __attribute__((unused)) = true;
using namespace std::tr1;
mersenne_twister<
unsigned long, 32, 624, 397, 31,
0x9908b0dful, 11, 7,
0x9d2c5680ul, 15,
0xefc60000ul, 18> u(1);
mersenne_twister<
unsigned long, 32, 624, 397, 31,
0x9908b0dful, 11, 7,
0x9d2c5680ul, 15,
0xefc60000ul, 18> v(2);
VERIFY( u != v );
}
int main()
{
test01();
return 0;
}

54
libstdc++-v3/testsuite/tr1/5_numerical_facilities/random/mersenne_twister/operators/serialize.cc Normal file
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@ -0,0 +1,54 @@
// 2006-06-06 Paolo Carlini <pcarlini@suse.de>
//
// Copyright (C) 2006 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 2, 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.
//
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING. If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.
// 5.1.4.2 class template mersenne_twister [tr.rand.eng.mers]
// 5.1.1 Table 16
#include <sstream>
#include <tr1/random>
#include <testsuite_hooks.h>
void
test01()
{
bool test __attribute__((unused)) = true;
using std::tr1::mersenne_twister;
std::stringstream str;
mersenne_twister<
unsigned long, 32, 624, 397, 31,
0x9908b0dful, 11, 7,
0x9d2c5680ul, 15,
0xefc60000ul, 18> u, v;
u(); // advance
str << u;
VERIFY( u != v );
str >> v;
VERIFY( u == v );
}
int main()
{
test01();
return 0;
}