[Boost-commit] svn:boost r39979 - trunk/libs/functional/hash/test

From: daniel_james_at_[hidden]
Date: 2007-10-13 13:47:58

Author: danieljames
Date: 2007-10-13 13:47:57 EDT (Sat, 13 Oct 2007)
New Revision: 39979
URL: http://svn.boost.org/trac/boost/changeset/39979

Log:
Separate the long double hash tests from the test for other float types. On
some platforms the standard library has poor support for long doubles causing
long doubles to fail when the others pass. So this makes it clearer that the
problem is only for long doubles.

Added:
   trunk/libs/functional/hash/test/hash_float_test.hpp   (contents, props changed)
   trunk/libs/functional/hash/test/hash_long_double_test.cpp   (contents, props changed)
Text files modified: 
   trunk/libs/functional/hash/test/Jamfile.v2          |     1                                         
   trunk/libs/functional/hash/test/hash_float_test.cpp |   197 --------------------------------------- 
   2 files changed, 2 insertions(+), 196 deletions(-)

Modified: trunk/libs/functional/hash/test/Jamfile.v2
==============================================================================
--- trunk/libs/functional/hash/test/Jamfile.v2	(original)
+++ trunk/libs/functional/hash/test/Jamfile.v2	2007-10-13 13:47:57 EDT (Sat, 13 Oct 2007)
@@ -20,6 +20,7 @@
         [ run hash_pointer_test.cpp ]
         [ run hash_function_pointer_test.cpp ]
         [ run hash_float_test.cpp : : : <test-info>always_show_run_output ]
+        [ run hash_long_double_test.cpp : : : <test-info>always_show_run_output ]
         [ run hash_string_test.cpp ]
         [ run hash_range_test.cpp ]
         [ run hash_custom_test.cpp ]

Modified: trunk/libs/functional/hash/test/hash_float_test.cpp
==============================================================================
--- trunk/libs/functional/hash/test/hash_float_test.cpp	(original)
+++ trunk/libs/functional/hash/test/hash_float_test.cpp	2007-10-13 13:47:57 EDT (Sat, 13 Oct 2007)
@@ -3,200 +3,7 @@
 // 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)
 
-#include "./config.hpp"
-
-#ifdef TEST_STD_INCLUDES
-#  include <functional>
-#else
-#  include <boost/functional/hash.hpp>
-#endif
-
-#include <boost/detail/lightweight_test.hpp>
-
-#include <cmath>
-#include <boost/limits.hpp>
-
-#include <iostream>
-
-template <class T>
-void float_tests(char const* name, T* = 0)
-{
-    std::cerr<<"\n"
-        <<"Testing " BOOST_STRINGIZE(HASH_NAMESPACE) "::hash<"<<name<<">\n"
-        <<"\n"
-        <<"std::numeric_limits<T>::digits = "
-            <<std::numeric_limits<T>::digits<<"\n"
-        <<"std::numeric_limits<int>::digits = "
-            <<std::numeric_limits<int>::digits<<"\n"
-        <<"std::numeric_limits<std::size_t>::digits = "
-            <<std::numeric_limits<std::size_t>::digits<<"\n"
-        <<"\n"
-        ;
-
-    HASH_NAMESPACE::hash<T> x1;
-
-    T zero = 0;
-    T minus_zero = (T) -1 * zero;
-
-    BOOST_TEST(zero == minus_zero);
-    BOOST_TEST(x1(zero) == x1(minus_zero));
-
-    BOOST_TEST(x1(zero) == HASH_NAMESPACE::hash_value(zero));
-    BOOST_TEST(x1(minus_zero) == HASH_NAMESPACE::hash_value(minus_zero));
-
-    using namespace std;
-
-// Doing anything with infinity causes borland to crash.
-#if defined(__BORLANDC__)
-    std::cerr<<"Not running infinity checks on Borland, as it causes it to crash.\n";
-#else
-    if(std::numeric_limits<T>::has_infinity) {
-        T infinity = -log(zero);
-        T infinity2 = (T) 1. / zero;
-        T infinity3 = (T) -1. / minus_zero;
-        T infinity4 = std::numeric_limits<T>::infinity();
-
-        T minus_infinity = log(zero);
-        T minus_infinity2 = (T) -1. / zero;
-        T minus_infinity3 = (T) 1. / minus_zero;
-
-        BOOST_TEST(x1(infinity) == HASH_NAMESPACE::hash_value(infinity));
-        BOOST_TEST(x1(minus_infinity)
-                == HASH_NAMESPACE::hash_value(minus_infinity));
-
-        if(infinity == infinity2)
-            BOOST_TEST(x1(infinity) == x1(infinity2));
-        if(infinity == infinity3)
-            BOOST_TEST(x1(infinity) == x1(infinity3));
-        if(infinity == infinity4)
-            BOOST_TEST(x1(infinity) == x1(infinity4));
-
-        if(minus_infinity == minus_infinity2)
-            BOOST_TEST(x1(minus_infinity) == x1(minus_infinity2));
-        if(minus_infinity == minus_infinity3)
-            BOOST_TEST(x1(minus_infinity) == x1(minus_infinity3));
-
-        BOOST_TEST(infinity != minus_infinity);
-
-        if(x1(infinity) == x1(minus_infinity)) {
-            std::cerr<<"x1(infinity) == x1(-infinity) == "<<x1(infinity)<<"\n";
-        }
-
-        // This should really be 'has_denorm == denorm_present' but some
-        // compilers don't have 'denorm_present'. See also a later use.
-        if(std::numeric_limits<T>::has_denorm) {
-            if(x1(std::numeric_limits<T>::denorm_min()) == x1(infinity)) {
-                std::cerr<<"x1(denorm_min) == x1(infinity) == "<<x1(infinity)<<"\n";
-            }
-            if(x1(std::numeric_limits<T>::denorm_min()) == x1(minus_infinity)) {
-                std::cerr<<"x1(denorm_min) == x1(-infinity) == "<<x1(minus_infinity)<<"\n";
-            }
-        }
-        if(std::numeric_limits<T>::has_quiet_NaN) {
-            if(x1(std::numeric_limits<T>::quiet_NaN()) == x1(infinity)) {
-                std::cerr<<"x1(quiet_NaN) == x1(infinity) == "<<x1(infinity)<<"\n";
-            }
-            if(x1(std::numeric_limits<T>::quiet_NaN()) == x1(minus_infinity)) {
-                std::cerr<<"x1(quiet_NaN) == x1(-infinity) == "<<x1(minus_infinity)<<"\n";
-            }
-        }
-    }
-#endif
-
-    T max = (std::numeric_limits<T>::max)();
-    T half_max = max / 2;
-    T quarter_max = max / 4;
-    T three_quarter_max = max - quarter_max;
-
-    BOOST_TEST(x1(max) == HASH_NAMESPACE::hash_value(max));
-    BOOST_TEST(x1(half_max) == HASH_NAMESPACE::hash_value(half_max));
-    BOOST_TEST(x1(quarter_max) == HASH_NAMESPACE::hash_value(quarter_max));
-    BOOST_TEST(x1(three_quarter_max) == HASH_NAMESPACE::hash_value(three_quarter_max));
-
-    // The '!=' tests could legitimately fail, but with my hash it indicates a bug.
-    BOOST_TEST(x1(max) == x1(max));
-    BOOST_TEST(x1(max) != x1(quarter_max));
-    BOOST_TEST(x1(max) != x1(half_max));
-    BOOST_TEST(x1(max) != x1(three_quarter_max));
-    BOOST_TEST(x1(quarter_max) == x1(quarter_max));
-    BOOST_TEST(x1(quarter_max) != x1(half_max));
-    BOOST_TEST(x1(quarter_max) != x1(three_quarter_max));
-    BOOST_TEST(x1(half_max) == x1(half_max));
-    BOOST_TEST(x1(half_max) != x1(three_quarter_max));
-    BOOST_TEST(x1(three_quarter_max) == x1(three_quarter_max));
-
-// Intel with gcc stdlib sometimes segfaults on calls to asin and acos.
-#if !((defined(__INTEL_COMPILER) || defined(__ICL) || \
-        defined(__ICC) || defined(__ECC)) && \
-    (defined(__GLIBCPP__) || defined(__GLIBCXX__)))
-    T v1 = asin((T) 1);
-    T v2 = acos((T) 0);
-    if(v1 == v2)
-        BOOST_TEST(x1(v1) == x1(v2));
-    BOOST_TEST(x1(v1) == HASH_NAMESPACE::hash_value(v1));
-    BOOST_TEST(x1(v2) == HASH_NAMESPACE::hash_value(v2));
-#endif
-
-    BOOST_TEST(x1(std::numeric_limits<T>::epsilon()) ==
-            HASH_NAMESPACE::hash_value(std::numeric_limits<T>::epsilon()));
-
-    BOOST_TEST(std::numeric_limits<T>::epsilon() != (T) 0);
-    if(x1(std::numeric_limits<T>::epsilon()) == x1((T) 0))
-        std::cerr<<"x1(epsilon) == x1(0) == "<<x1((T) 0)<<"\n";
-
-    BOOST_TEST(-std::numeric_limits<T>::epsilon() != (T) 0);
-    if(x1(-std::numeric_limits<T>::epsilon()) == x1((T) 0))
-        std::cerr<<"x1(-epsilon) == x1(0) == "<<x1((T) 0)<<"\n";
-
-    BOOST_TEST((T) 1 + std::numeric_limits<T>::epsilon() != (T) 1);
-    if(x1((T) 1 + std::numeric_limits<T>::epsilon()) == x1((T) 1))
-        std::cerr<<"x1(1 + epsilon) == x1(1) == "<<x1((T) 1)<<"\n";
-
-    BOOST_TEST((T) 1 - std::numeric_limits<T>::epsilon() != (T) 1);
-    if(x1((T) 1 - std::numeric_limits<T>::epsilon()) == x1((T) 1))
-        std::cerr<<"x1(1 - epsilon) == x1(1) == "<<x1((T) 1)<<"\n";
-
-    BOOST_TEST((T) -1 + std::numeric_limits<T>::epsilon() != (T) -1);
-    if(x1((T) -1 + std::numeric_limits<T>::epsilon()) == x1((T) -1))
-        std::cerr<<"x1(-1 + epsilon) == x1(-1) == "<<x1((T) -1)<<"\n";
-
-    BOOST_TEST((T) -1 - std::numeric_limits<T>::epsilon() != (T) -1);
-    if(x1((T) -1 - std::numeric_limits<T>::epsilon()) == x1((T) -1))
-        std::cerr<<"x1(-1 - epsilon) == x1(-1) == "<<x1((T) -1)<<"\n";
-
-    // As before.
-    if(std::numeric_limits<T>::has_denorm) {
-        if(x1(std::numeric_limits<T>::denorm_min()) == x1(zero)) {
-            std::cerr<<"x1(denorm_min) == x1(zero) == "<<x1(zero)<<"\n";
-        }
-#if !BOOST_WORKAROUND(__DECCXX_VER,<70190006)
-        // The Tru64/CXX standard library prior to 7.1 contains a bug in the
-        // specialization of std::numeric_limits::denorm_min() for long
-        // doubles which causes this test to fail.
-        if(x1(std::numeric_limits<T>::denorm_min()) !=
-            HASH_NAMESPACE::hash_value(std::numeric_limits<T>::denorm_min()))
-        {
-            std::cerr<<"x1(std::numeric_limits<T>::denorm_min()) = "
-                << x1(std::numeric_limits<T>::denorm_min())
-                << "\nhash_value(std::numeric_limits<T>::denorm_min()) = "
-                << HASH_NAMESPACE::hash_value(
-                        std::numeric_limits<T>::denorm_min())
-                << "\nx1(0) = "<<x1(0)<<"\n";
-        }
-#endif
-    }
-
-// NaN also causes borland to crash.
-#if !defined(__BORLANDC__)
-    if(std::numeric_limits<T>::has_quiet_NaN) {
-        if(x1(std::numeric_limits<T>::quiet_NaN()) == x1(1.0)) {
-            std::cerr<<"x1(quiet_NaN) == x1(1.0) == "<<x1(1.0)<<"\n";
-        }
-        BOOST_TEST(x1(std::numeric_limits<T>::quiet_NaN()) ==
-            HASH_NAMESPACE::hash_value(std::numeric_limits<T>::quiet_NaN()));
-    }
-#endif
-}
+#include "hash_float_test.hpp"
 
 int main()
 {
@@ -206,8 +13,6 @@
 
     float_tests("float", (float*) 0);
     float_tests("double", (double*) 0);
-    float_tests("long double", (long double*) 0);
 
     return boost::report_errors();
 }
-

Added: trunk/libs/functional/hash/test/hash_float_test.hpp
==============================================================================
Binary file. No diff available.

Added: trunk/libs/functional/hash/test/hash_long_double_test.cpp
==============================================================================
Binary file. No diff available.