blt-gp/tests/gp_test_2.cpp

68 lines
2.2 KiB
C++

/*
* <Short Description>
* Copyright (C) 2024 Brett Terpstra
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <blt/gp/program.h>
#include <blt/gp/generators.h>
#include <blt/gp/tree.h>
#include <blt/std/logging.h>
static const auto SEED_FUNC = [] { return std::random_device()(); };
blt::gp::gp_program program(SEED_FUNC); // NOLINT
blt::gp::operation_t add([](float a, float b) {
BLT_TRACE("a: %f + b: %f = %f", a, b, a + b);
return a + b;
});
blt::gp::operation_t sub([](float a, float b) {
BLT_TRACE("a: %f - b: %f = %f", a, b, a - b);
return a - b;
});
blt::gp::operation_t mul([](float a, float b) {
BLT_TRACE("a: %f * b: %f = %f", a, b, a * b);
return a * b;
});
blt::gp::operation_t pro_div([](float a, float b) {
BLT_TRACE("a: %f / b: %f = %f", a, b, (b == 0 ? 0.0f : a / b));
return b == 0 ? 0.0f : a / b;
});
auto lit = blt::gp::operation_t([]() {
//static std::uniform_real_distribution<float> dist(-32000, 32000);
// static std::uniform_real_distribution<float> dist(0.0f, 10.0f);
return program.get_random().get_float(0.0f, 10.0f);
}).set_ephemeral();
/**
* This is a test using a type with blt::gp
*/
int main()
{
blt::gp::operator_builder silly{};
program.set_operations(silly.build(add, sub, mul, pro_div, lit));
blt::gp::grow_generator_t grow;
blt::gp::tree_t tree{program};
grow.generate(tree, blt::gp::generator_arguments{program, program.get_typesystem().get_type<float>().id(), 3, 7});
auto value = tree.get_evaluation_value<float>();
BLT_TRACE(value);
return 0;
}