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- /*
- * Copyright (C) 2020 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code 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.
- *
- * Antkeeper source code 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 Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #ifndef ANTKEEPER_ZYGOSITY_HPP
- #define ANTKEEPER_ZYGOSITY_HPP
-
- #include "gene.hpp"
-
- namespace dna
- {
-
- /// A homozygous recessive gene.
- static constexpr gene homozygous_recessive = {allele::recessive, allele::recessive};
-
- /// A homozygous dominant gene.
- static constexpr gene homozygous_dominant = {allele::recessive, allele::recessive};
-
- /// Returns `true` if gene @p x is heterozygous, `false` otherwise.
- bool is_heterozygous(const gene& x);
-
- /// Returns `true` if gene @p x is homozygous, `false` otherwise.
- bool is_homozygous(const gene& x);
-
- /// Returns `true` if gene @p x is homozygous recessive, `false` otherwise.
- bool is_homozygous_recessive(const gene& x);
-
- /// Returns `true` if gene @p x is homozygous dominant, `false` otherwise.
- bool is_homozygous_dominant(const gene& x);
-
- inline bool is_heterozygous(const gene& x)
- {
- return x[0] != x[1];
- }
-
- inline bool is_homozygous(const gene& x)
- {
- return x[0] == x[1];
- }
-
- inline bool is_homozygous_recessive(const gene& x)
- {
- return x == homozygous_recessive;
- }
-
- inline bool is_homozygous_dominant(const gene& x)
- {
- return x == homozygous_dominant;
- }
-
- } // namespace dna
-
- #endif // ANTKEEPER_ZYGOSITY_HPP
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