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#include <testLimits.h>
#include <halfLimits.h>
#include <iostream>
#include <assert.h>
using namespace std;
namespace {
float
mypow (int x, int y)
{
bool negative = false;
if (y < 0)
{
negative = true;
y = -y;
}
float z = 1;
while (y > 0)
{
z *= x;
y -= 1;
}
if (negative)
z = 1 / z;
return z;
}
} // namespace
void
testLimits()
{
#ifndef HAVE_STL_LIMITS
cout << "testLimits: Not supported with this compiler\n";
#else
cout << "values in std::numeric_limits<half>\n";
cout << "min_exponent\n";
{
half h (mypow (2, numeric_limits<half>::min_exponent - 1));
assert (h.isNormalized());
}
{
half h (mypow (2, numeric_limits<half>::min_exponent - 2));
assert (h.isDenormalized());
}
cout << "max_exponent\n";
{
half h (mypow (2, numeric_limits<half>::max_exponent - 1));
assert (h.isNormalized());
}
{
half h (mypow (2, numeric_limits<half>::max_exponent));
assert (h.isInfinity());
}
cout << "min_exponent10\n";
{
half h (mypow (10, numeric_limits<half>::min_exponent10));
assert (h.isNormalized());
}
{
half h (mypow (10, numeric_limits<half>::min_exponent10 - 1));
assert (h.isDenormalized());
}
cout << "max_exponent10\n";
{
half h (mypow (10, numeric_limits<half>::max_exponent10));
assert (h.isNormalized());
}
{
half h (mypow (10, numeric_limits<half>::max_exponent10 + 1));
assert (h.isInfinity());
}
#endif
cout << "ok\n\n" << flush;
}
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