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Check for float functions with less templates.

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The only template mechanism now used is full specialization, so this should
hopefully be more portable to compilers we don't test.

[SVN r53247]
This commit is contained in:
Daniel James
2009-05-25 13:45:16 +00:00
parent 1ccd4616fc
commit e655314f73
3 changed files with 209 additions and 229 deletions
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hash/test/hash_float_test.hpp
+21
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@@ -23,6 +23,10 @@
#pragma warning(disable:4127) // conditional expression is constant
#endif
char const* float_type(float*) { return "float"; }
char const* float_type(double*) { return "double"; }
char const* float_type(long double*) { return "long double"; }
template <class T>
void float_tests(char const* name, T* = 0)
{
@@ -36,6 +40,15 @@ void float_tests(char const* name, T* = 0)
<<"boost::hash_detail::limits<std::size_t>::digits = "
<<boost::hash_detail::limits<std::size_t>::digits<<"\n"
<<"\n"
<<"boost::hash_detail::call_ldexp<T>::float_type = "
<<float_type((BOOST_DEDUCED_TYPENAME boost::hash_detail::call_ldexp<T>::float_type*)0)<<"\n"
<<"boost::call_frexp<T>::float_type = "
<<float_type((BOOST_DEDUCED_TYPENAME boost::hash_detail::call_frexp<T>::float_type*)0)<<"\n"
<<"boost::hash_detail::call_frexp<T>::float_type = "
<<float_type((BOOST_DEDUCED_TYPENAME boost::hash_detail::call_frexp<T>::float_type*)0)<<"\n"
<<"boost::hash_detail::select_hash_type<T>::type = "
<<float_type((BOOST_DEDUCED_TYPENAME boost::hash_detail::select_hash_type<T>::type*)0)<<"\n"
<<"\n"
;
HASH_NAMESPACE::hash<T> x1;
@@ -112,6 +125,14 @@ void float_tests(char const* name, T* = 0)
T half_max = max / 2;
T quarter_max = max / 4;
T three_quarter_max = max - quarter_max;
// Check the limits::max is in range.
BOOST_TEST(max != half_max);
BOOST_TEST(max != quarter_max);
BOOST_TEST(max != three_quarter_max);
BOOST_TEST(half_max != quarter_max);
BOOST_TEST(half_max != three_quarter_max);
BOOST_TEST(quarter_max != three_quarter_max);
BOOST_TEST(x1(max) == HASH_NAMESPACE::hash_value(max));
BOOST_TEST(x1(half_max) == HASH_NAMESPACE::hash_value(half_max));