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/*
* Author: Sven Gothel <sgothel@jausoft.com>
* Copyright (c) 2024 Gothel Software e.K.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <thread>
#include <cassert>
#include <cinttypes>
#include <cstring>
#include <jau/test/catch2_ext.hpp>
#include <jau/int_math.hpp>
using namespace jau;
using namespace jau::int_literals;
TEST_CASE( "Int Math Bench 01a", "[abs][benchmark][arithmetic][math]" ) {
BENCHMARK("jau::abs Benchmark") {
REQUIRE( 1 == jau::abs( 1) );
REQUIRE( 1 == jau::abs(-1) );
REQUIRE( 1_i64 == jau::abs( 1_i64) );
REQUIRE( 1_i64 == jau::abs(-1_i64) );
REQUIRE( std::numeric_limits<int64_t>::max() == jau::abs( std::numeric_limits<int64_t>::max() ) );
REQUIRE( INT32_MAX == jau::abs( INT32_MAX ) );
};
}
TEST_CASE( "Int Math Bench 01b", "[ct_abs][benchmark][arithmetic][math]" ) {
BENCHMARK("jau::ct_abs Benchmark") {
REQUIRE( 1 == jau::ct_abs( 1) );
REQUIRE( 1 == jau::ct_abs(-1) );
REQUIRE( 1_i64 == jau::ct_abs( 1_i64) );
REQUIRE( 1_i64 == jau::ct_abs(-1_i64) );
REQUIRE( std::numeric_limits<int64_t>::max() == jau::ct_abs( std::numeric_limits<int64_t>::max() ) );
// REQUIRE( std::numeric_limits<int64_t>::max() == jau::ct_abs( std::numeric_limits<int64_t>::min() ) ); // UB
REQUIRE( INT32_MAX == jau::ct_abs( INT32_MAX ) );
// REQUIRE( INT32_MAX == jau::ct_abs( INT32_MIN ) ); // UB
};
}
TEST_CASE( "Int Math Bench 01c", "[abs][benchmark][arithmetic][math]" ) {
BENCHMARK("std::abs Benchmark") {
REQUIRE( 1 == std::abs( 1) );
REQUIRE( 1 == std::abs(-1) );
REQUIRE( 1_i64 == std::abs( 1_i64) );
REQUIRE( 1_i64 == std::abs(-1_i64) );
REQUIRE( std::numeric_limits<int64_t>::max() == std::abs( std::numeric_limits<int64_t>::max() ) );
REQUIRE( INT32_MAX == std::abs( INT32_MAX ) );
};
}
TEST_CASE( "Int Math Bench 02a", "[min][max][benchmark][arithmetic][math]" ) {
BENCHMARK("MinMax Benchmark") {
REQUIRE( 0 == jau::min( 0, INT32_MAX ) );
REQUIRE( INT32_MAX == jau::max( 0, INT32_MAX ) );
REQUIRE( INT32_MAX-1== jau::min( INT32_MAX-1, INT32_MAX ) );
REQUIRE( INT32_MAX == jau::max( INT32_MAX-1, INT32_MAX ) );
REQUIRE( INT32_MIN == jau::min( 0, INT32_MIN ) );
REQUIRE( 0 == jau::max( 0, INT32_MIN ) );
REQUIRE( INT32_MIN == jau::min( INT32_MIN+1, INT32_MIN ) );
REQUIRE( INT32_MIN+1== jau::max( INT32_MIN+1, INT32_MIN ) );
};
}
TEST_CASE( "Int Math Bench 03a", "[ct_min][ct_max][benchmark][arithmetic][math]" ) {
BENCHMARK("Min2Max2 Benchmark") {
REQUIRE( 0 == jau::ct_min( 0, INT32_MAX ) );
REQUIRE( INT32_MAX == jau::ct_max( 0, INT32_MAX ) );
REQUIRE( INT32_MAX-1== jau::ct_min( INT32_MAX-1, INT32_MAX ) );
REQUIRE( INT32_MAX == jau::ct_max( INT32_MAX-1, INT32_MAX ) );
REQUIRE( INT32_MIN+1 == jau::ct_min( 0, INT32_MIN+1 ) ); // limitation: `MIN <= x - y <= MAX`
REQUIRE( 0 == jau::ct_max( 0, INT32_MIN+1 ) ); // limitation: `MIN <= x - y <= MAX`
REQUIRE( INT32_MIN == jau::ct_min( INT32_MIN+1, INT32_MIN ) );
REQUIRE( INT32_MIN+1== jau::ct_max( INT32_MIN+1, INT32_MIN ) );
};
}
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