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Add auto_test cases lowest(), epsilon(), 0.0, -0.0, 1.0, -1.0

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This commit is contained in:
Beman
2015-03-14 09:01:55 -04:00
parent ff4b22bdec
commit cea2be8023
1 changed files with 36 additions and 8 deletions
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44
test/floating_point_test.cpp
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@ -116,7 +116,7 @@ namespace
return tmp;
}
const std::size_t n_test_cases = 10;
const std::size_t n_test_cases = 16;
boost::array<test_case<float>, n_test_cases> float_test_cases;
boost::array<test_case<double>, n_test_cases> double_test_cases;
@ -125,6 +125,10 @@ namespace
using namespace boost::math::constants;
int i = 0;
// template for cut-and-paste of new values
// float_test_cases[i].assign("", , "", "");
// double_test_cases[i++].assign("", , "", "");
float_test_cases[i].assign("numeric_limits<float>::min()",
numeric_limits<float>::min(), "00800000", "00008000");
double_test_cases[i++].assign("numeric_limits<double>::min()",
@ -135,6 +139,16 @@ namespace
double_test_cases[i++].assign("numeric_limits<double>::max()",
numeric_limits<double>::max(), "7fefffffffffffff", "ffffffffffffef7f");
float_test_cases[i].assign("numeric_limits<float>::lowest()",
numeric_limits<float>::lowest(), "ff7fffff", "ffff7fff");
double_test_cases[i++].assign("numeric_limits<double>::lowest()",
numeric_limits<double>::lowest(), "ffefffffffffffff", "ffffffffffffefff");
float_test_cases[i].assign("numeric_limits<float>::epsilon()",
numeric_limits<float>::epsilon(), "34000000", "00000034");
double_test_cases[i++].assign("numeric_limits<double>::epsilon()",
numeric_limits<double>::epsilon(), "3cb0000000000000", "000000000000b03c");
float_test_cases[i].assign("numeric_limits<float>::round_error()",
numeric_limits<float>::round_error(), "3f000000", "0000003f");
double_test_cases[i++].assign("numeric_limits<double>::round_error()",
@ -165,10 +179,17 @@ namespace
double_test_cases[i++].assign("numeric_limits<double>::denorm_min()",
numeric_limits<double>::denorm_min(), "0000000000000001", "0100000000000000");
float_test_cases[i].assign("pi<float>()",
pi<float>(), "40490fdb", "db0f4940");
double_test_cases[i++].assign("pi<double>()",
pi<double>(), "400921fb54442d18", "182d4454fb210940");
float_test_cases[i].assign("0.0f", 0.0f, "00000000", "00000000");
double_test_cases[i++].assign("0.0", 0.0, "0000000000000000", "0000000000000000");
float_test_cases[i].assign("-0.0f", -0.0f, "80000000", "00000080");
double_test_cases[i++].assign("-0.0", -0.0, "8000000000000000", "0000000000000080");
float_test_cases[i].assign("1.0f", 1.0f, "3f800000", "0000803f");
double_test_cases[i++].assign("1.0", 1.0, "3ff0000000000000", "000000000000f03f");
float_test_cases[i].assign("-1.0f", -1.0f, "bf800000", "000080bf");
double_test_cases[i++].assign("-1.0", -1.0, "bff0000000000000", "000000000000f0bf");
uint32_t vf1 (0x12345678U);
float_test_cases[i].assign("native uint32_t 0x12345678U as float",
@ -177,6 +198,11 @@ namespace
double_test_cases[i++].assign("native uint64_t 0x0123456789abcdefULL as double",
*reinterpret_cast<const double*>(&vd1), "0123456789abcdef", "efcdab8967452301");
float_test_cases[i].assign("pi<float>()",
pi<float>(), "40490fdb", "db0f4940");
double_test_cases[i++].assign("pi<double>()",
pi<double>(), "400921fb54442d18", "182d4454fb210940");
BOOST_ASSERT(i == n_test_cases);
}
@ -211,7 +237,7 @@ namespace
cout << " has_denorm " << numeric_limits<T>::has_denorm << "\n";
cout << " digits " << numeric_limits<T>::digits << "\n";
cout << " digits10 " << numeric_limits<T>::digits10 << "\n";
// cout << " max_digits10 " << numeric_limits<T>::max_digits10 << "\n";
cout << " max_digits10 " << numeric_limits<T>::max_digits10 << "\n";
cout << " radix " << numeric_limits<T>::radix << "\n";
cout << " min_exponent " << numeric_limits<T>::min_exponent << "\n";
cout << " min_exponent10 " << numeric_limits<T>::min_exponent10 << "\n";
@ -219,8 +245,8 @@ namespace
cout << " max_exponent10 " << numeric_limits<T>::max_exponent10 << "\n";
show_value("min()", numeric_limits<T>::min());
show_value("max()", numeric_limits<T>::max());
// show_value("lowest()", numeric_limits<T>::lowest());
// show_value("epsilon()", numeric_limits<T>::epsilon());
show_value("lowest()", numeric_limits<T>::lowest());
show_value("epsilon()", numeric_limits<T>::epsilon());
show_value("round_error()", numeric_limits<T>::round_error());
show_value("infinity()", numeric_limits<T>::infinity());
show_value("-infinity()", -numeric_limits<T>::infinity());
@ -228,7 +254,9 @@ namespace
show_value("signaling_NaN()", numeric_limits<T>::signaling_NaN());
show_value("denorm_min()", numeric_limits<T>::denorm_min());
show_value("0.0", static_cast<T>(0.0));
show_value("-0.0", static_cast<T>(-0.0));
show_value("1.0", static_cast<T>(1.0));
show_value("-1.0", static_cast<T>(-1.0));
show_value("pi()", pi<T>());
}