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#include <testClassification.h>
#include <half.h>
#include <iostream>
#include <assert.h>
using namespace std;
namespace {
void
testClass (half h,
bool finite,
bool normalized,
bool denormalized,
bool zero,
bool nan,
bool infinity,
bool negative)
{
cout.width (15);
cout.precision (8);
cout << h << " ";
printBits (cout, h);
cout << " ";
if (h.isFinite())
cout << "finite ";
if (h.isNormalized())
cout << "normalized ";
if (h.isDenormalized())
cout << "denormalized ";
if (h.isZero())
cout << "zero ";
if (h.isNan())
cout << "nan ";
if (h.isInfinity())
cout << "infinity ";
if (h.isNegative())
cout << "negative ";
cout << endl;
assert (h.isFinite() == finite);
assert (h.isNormalized() == normalized);
assert (h.isDenormalized() == denormalized);
assert (h.isZero() == zero);
assert (h.isNan() == nan);
assert (h.isInfinity() == infinity);
assert (h.isNegative() == negative);
}
float
floatPosInfinity ()
{
half::uif x;
x.i = 0x7f800000;
return x.f;
}
float
floatNegInfinity ()
{
half::uif x;
x.i = 0xff800000;
return x.f;
}
float
floatPosQNan1 ()
{
half::uif x;
x.i = 0x7fffffff;
return x.f;
}
float
floatNegQNan1 ()
{
half::uif x;
x.i = 0xffffffff;
return x.f;
}
float
floatPosQNan2 ()
{
half::uif x;
x.i = 0x7fd55555;
return x.f;
}
float
floatNegQNan2 ()
{
half::uif x;
x.i = 0xffd55555;
return x.f;
}
} // namespace
void
testClassification()
{
cout << "classification of bit patterns\n\n";
//
// fini norm deno zero nan inf neg
//
testClass (0.0, 1, 0, 0, 1, 0, 0, 0);
testClass (1.0, 1, 1, 0, 0, 0, 0, 0);
testClass (1.0 + HALF_EPSILON, 1, 1, 0, 0, 0, 0, 0);
testClass (HALF_MIN, 1, 0, 1, 0, 0, 0, 0);
testClass (HALF_MIN + HALF_MIN, 1, 0, 1, 0, 0, 0, 0);
testClass (HALF_NRM_MIN, 1, 1, 0, 0, 0, 0, 0);
testClass (HALF_NRM_MIN + HALF_MIN, 1, 1, 0, 0, 0, 0, 0);
testClass (HALF_NRM_MIN - HALF_MIN, 1, 0, 1, 0, 0, 0, 0);
testClass (2.0, 1, 1, 0, 0, 0, 0, 0);
testClass (3.0, 1, 1, 0, 0, 0, 0, 0);
testClass (0.1, 1, 1, 0, 0, 0, 0, 0);
testClass (0.2, 1, 1, 0, 0, 0, 0, 0);
testClass (0.3, 1, 1, 0, 0, 0, 0, 0);
testClass (HALF_MAX, 1, 1, 0, 0, 0, 0, 0);
testClass (floatPosInfinity(), 0, 0, 0, 0, 0, 1, 0);
testClass (floatPosQNan1(), 0, 0, 0, 0, 1, 0, 0);
testClass (floatPosQNan2(), 0, 0, 0, 0, 1, 0, 0);
testClass (-1.0, 1, 1, 0, 0, 0, 0, 1);
testClass (-1.0 - HALF_EPSILON, 1, 1, 0, 0, 0, 0, 1);
testClass (-HALF_MIN, 1, 0, 1, 0, 0, 0, 1);
testClass (-HALF_MIN - HALF_MIN, 1, 0, 1, 0, 0, 0, 1);
testClass (-HALF_NRM_MIN, 1, 1, 0, 0, 0, 0, 1);
testClass (-HALF_NRM_MIN - HALF_MIN,1, 1, 0, 0, 0, 0, 1);
testClass (-HALF_NRM_MIN + HALF_MIN,1, 0, 1, 0, 0, 0, 1);
testClass (-2.0, 1, 1, 0, 0, 0, 0, 1);
testClass (-3.0, 1, 1, 0, 0, 0, 0, 1);
testClass (-0.1, 1, 1, 0, 0, 0, 0, 1);
testClass (-0.2, 1, 1, 0, 0, 0, 0, 1);
testClass (-0.3, 1, 1, 0, 0, 0, 0, 1);
testClass (-HALF_MAX, 1, 1, 0, 0, 0, 0, 1);
testClass (floatNegInfinity(), 0, 0, 0, 0, 0, 1, 1);
testClass (floatNegQNan1(), 0, 0, 0, 0, 1, 0, 1);
testClass (floatNegQNan2(), 0, 0, 0, 0, 1, 0, 1);
cout << "\n";
testClass (half::posInf(), 0, 0, 0, 0, 0, 1, 0);
testClass (half::negInf(), 0, 0, 0, 0, 0, 1, 1);
testClass (half::qNan(), 0, 0, 0, 0, 1, 0, 0);
testClass (half::sNan(), 0, 0, 0, 0, 1, 0, 0);
cout << "ok\n\n" << flush;
}
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