random.hpp

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#ifndef GENESIS_UTILS_MATH_RANDOM_H_
#define GENESIS_UTILS_MATH_RANDOM_H_
 
/*
    Genesis - A toolkit for working with phylogenetic data.
    Copyright (C) 2014-2024 Lucas Czech
 
    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 <http://www.gnu.org/licenses/>.
 
    Contact:
    Lucas Czech <lczech@carnegiescience.edu>
    Department of Plant Biology, Carnegie Institution For Science
    260 Panama Street, Stanford, CA 94305, USA
*/
 
#include <cstddef>
#include <cstdint>
#include <vector>
 
namespace genesis {
namespace utils {
 
// =================================================================================================
//     Fast Randomness
// =================================================================================================
 
uint32_t permuted_congruential_generator();
 
uint32_t permuted_congruential_generator( uint32_t max );
 
uint32_t permuted_congruential_generator( uint32_t min, uint32_t max );
 
bool permuted_congruential_generator_bool();
 
bool permuted_congruential_generator_bool( uint32_t chance_one_in );
 
void permuted_congruential_generator_init( uint64_t seed );
 
// =================================================================================================
//     Sampling
// =================================================================================================
 
std::vector<size_t> select_without_replacement( size_t k, size_t n );
 
} // namespace utils
} // namespace genesis
 
#endif // include guard