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Merge [53462], [53699], and [53800] from the trunk.

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[SVN r53871]
This commit is contained in:
Steven Watanabe
2009-06-13 17:54:06 +00:00
parent 7abb87d4f8
commit 6ce516d9ed
12 changed files with 383 additions and 121 deletions
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34
random_test.cpp
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@@ -64,7 +64,8 @@ void check_uniform_int(Generator & gen, int iter)
for(int k = 0; k < range; k++)
sum += bucket[k];
double avg = static_cast<double>(sum)/range;
double threshold = 2*avg/std::sqrt(static_cast<double>(iter));
double p = 1 / static_cast<double>(range);
double threshold = 2*std::sqrt(static_cast<double>(iter)*p*(1-p));
for(int i = 0; i < range; i++) {
if(std::fabs(bucket[i] - avg) > threshold) {
// 95% confidence interval
@@ -100,11 +101,37 @@ void test_uniform_int(Generator & gen)
// small range => larger range
level_two uint05(uint12, int_gen(-3, 2));
check_uniform_int(uint05, 100000);
// small range => larger range
level_two uint099(uint12, int_gen(0, 99));
check_uniform_int(uint099, 100000);
// larger => small range, rejection case
typedef boost::variate_generator<level_two&, int_gen> level_three;
level_three uint1_4(uint05, int_gen(1, 4));
check_uniform_int(uint1_4, 100000);
typedef boost::uniform_int<boost::uint8_t> int8_gen;
typedef boost::variate_generator<Generator&, int8_gen> gen8_t;
gen8_t gen8_03(gen, int8_gen(0, 3));
// use the full range of the type, where the destination
// range is a power of the source range
typedef boost::variate_generator<gen8_t, int8_gen> uniform_uint8;
uniform_uint8 uint8_0255(gen8_03, int8_gen(0, 255));
check_uniform_int(uint8_0255, 100000);
// use the full range, but a generator whose range is not
// a root of the destination range.
gen8_t gen8_02(gen, int8_gen(0, 2));
uniform_uint8 uint8_0255_2(gen8_02, int8_gen(0, 255));
check_uniform_int(uint8_0255_2, 100000);
// expand the range to a larger type.
typedef boost::variate_generator<gen8_t, int_gen> uniform_uint_from8;
uniform_uint_from8 uint0300(gen8_03, int_gen(0, 300));
check_uniform_int(uint0300, 100000);
}
#if defined(BOOST_MSVC) && _MSC_VER < 1300
@@ -140,10 +167,13 @@ INSTANT(boost::mt11213b)
class ruetti_gen
{
public:
ruetti_gen() : state((max)() - 1) {}
typedef boost::uint64_t result_type;
result_type min BOOST_PREVENT_MACRO_SUBSTITUTION () const { return 0; }
result_type max BOOST_PREVENT_MACRO_SUBSTITUTION () const { return std::numeric_limits<result_type>::max BOOST_PREVENT_MACRO_SUBSTITUTION (); }
result_type operator()() { return (max)()-1; }
result_type operator()() { return state--; }
private:
result_type state;
};
void test_overflow_range()