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/*################################################################################
##
## Copyright (C) 2016-2024 Keith O'Hara
##
## This file is part of the GCE-Math C++ library.
##
## Licensed under the Apache License, Version 2.0 (the "License");
## you may not use this file except in compliance with the License.
## You may obtain a copy of the License at
##
## http://www.apache.org/licenses/LICENSE-2.0
##
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
################################################################################*/
#define TEST_ERR_TOL 1e-02
#define TEST_PRINT_PRECISION_1 6
#define TEST_PRINT_PRECISION_2 18
#include "gcem_tests.hpp"
int main()
{
print_begin("factorial");
std::function<long double (long double)> std_fn = [] (long double x) -> long double { return std::tgamma(x+1); };
//
// using long doubles -> tgamma
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 3.1L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 7.0L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 10.0L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 12.0L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 14.0L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 15.0L);
// using long ints
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 5L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 9L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 11L);
#ifndef _WIN32
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 13L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 16L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 18L);
GCEM_TEST_COMPARE_VALS(gcem::factorial,std_fn, 20L);
#endif
//
print_final("factorial");
return 0;
}
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