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/** Simple set of tests for floating pt.
*/
#include <testfwk.h>
#include <math.h>
#if (PORT_HOST)
# define FCOMP(a,b) (fabsf((a) - (b)) < ((b) * 1e-7))
#else
/* Testing floats for equality is normally a bug,
but too keep this test simple we dare it. And
it works with the exception of the division on
the host port. */
# define FCOMP(a,b) ((a) == (b))
#endif
void
testCmp(void)
{
volatile float left, right;
left = 5;
right = 13;
ASSERT(left + right == 18);
ASSERT(left + right <= 18);
ASSERT(left + right >= 18);
ASSERT(left + right > 17.9);
ASSERT(left + right < 18.1);
}
void
testDiv(void)
{
#if defined (__mcs51) && !defined (SDCC_STACK_AUTO)
idata at 0xd0
#endif
volatile float left;
volatile float right;
left = 17;
right = 343;
ASSERT(FCOMP(left/right, (17.0/343.0)));
ASSERT(FCOMP(right/left, (343.0/17.0)));
right = 17;
ASSERT(FCOMP(left/right, 1.0));
}
void
testDivNearOne(void)
{
volatile float left, right, result;
left = 12392.4;
right = 12392.4;
result = left / right;
if (result > 0.999999)
{
/* Fine */
}
else
{
FAIL();
}
if (result < 1.00001)
{
/* Fine */
}
else
{
FAIL();
}
if (result > 0.999999 && result < 1.00001)
{
/* Fine */
}
else
{
FAIL();
}
}
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