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#include <logmath.h>
#include "test_macros.h"
#define LOG_EPSILON 1500
int
main(int argc, char *argv[])
{
logmath_t *lmath;
int32 rv;
lmath = logmath_init(1.0001, 0, 1);
TEST_ASSERT(lmath);
printf("log(1e-150) = %d\n", logmath_log(lmath, 1e-150));
TEST_EQUAL_LOG(logmath_log(lmath, 1e-150), -3454050);
printf("exp(log(1e-150)) = %e\n",logmath_exp(lmath, logmath_log(lmath, 1e-150)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 1e-150)), 1e-150);
printf("log(1e-48) = %d\n", logmath_log(lmath, 1e-48));
printf("exp(log(1e-48)) = %e\n",logmath_exp(lmath, logmath_log(lmath, 1e-48)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 1e-48)), 1e-48);
printf("log(42) = %d\n", logmath_log(lmath, 42));
TEST_EQUAL_LOG(logmath_log(lmath, 42), 37378);
printf("exp(log(42)) = %f\n",logmath_exp(lmath, logmath_log(lmath, 42)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 42)), 42);
printf("log(1e-3 + 5e-3) = %d l+ %d = %d\n",
logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3),
logmath_add(lmath, logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3)));
printf("log(1e-3 + 5e-3) = %e + %e = %e\n",
logmath_exp(lmath, logmath_log(lmath, 1e-3)),
logmath_exp(lmath, logmath_log(lmath, 5e-3)),
logmath_exp(lmath, logmath_add(lmath, logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3))));
TEST_EQUAL_LOG(logmath_add(lmath, logmath_log(lmath, 1e-48),
logmath_log(lmath, 5e-48)),
logmath_log(lmath, 6e-48));
TEST_EQUAL_LOG(logmath_add(lmath, logmath_log(lmath, 1e-48),
logmath_log(lmath, 42)),
logmath_log(lmath, 42));
rv = logmath_write(lmath, "tmp.logadd");
TEST_EQUAL(rv, 0);
logmath_free(lmath);
lmath = logmath_read("tmp.logadd");
TEST_ASSERT(lmath);
printf("log(1e-150) = %d\n", logmath_log(lmath, 1e-150));
TEST_EQUAL_LOG(logmath_log(lmath, 1e-150), -3454050);
printf("exp(log(1e-150)) = %e\n",logmath_exp(lmath, logmath_log(lmath, 1e-150)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 1e-150)), 1e-150);
printf("log(1e-48) = %d\n", logmath_log(lmath, 1e-48));
printf("exp(log(1e-48)) = %e\n",logmath_exp(lmath, logmath_log(lmath, 1e-48)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 1e-48)), 1e-48);
printf("log(42) = %d\n", logmath_log(lmath, 42));
TEST_EQUAL_LOG(logmath_log(lmath, 42), 37378);
printf("exp(log(42)) = %f\n",logmath_exp(lmath, logmath_log(lmath, 42)));
TEST_EQUAL_FLOAT(logmath_exp(lmath, logmath_log(lmath, 42)), 41.99);
printf("log(1e-3 + 5e-3) = %d l+ %d = %d\n",
logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3),
logmath_add(lmath, logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3)));
printf("log(1e-3 + 5e-3) = %e + %e = %e\n",
logmath_exp(lmath, logmath_log(lmath, 1e-3)),
logmath_exp(lmath, logmath_log(lmath, 5e-3)),
logmath_exp(lmath, logmath_add(lmath, logmath_log(lmath, 1e-3),
logmath_log(lmath, 5e-3))));
TEST_EQUAL_LOG(logmath_add(lmath, logmath_log(lmath, 1e-48),
logmath_log(lmath, 5e-48)),
logmath_log(lmath, 6e-48));
TEST_EQUAL_LOG(logmath_add(lmath, logmath_log(lmath, 1e-48),
logmath_log(lmath, 42)),
logmath_log(lmath, 42));
return 0;
}
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