a55c186a74
This changes libsnark to build in-place, instead of copying first to a build directory. Previously, modifications made to the original sources wouldn't get rebuilt without a 'make clean' because users would be pointing to the copies. This closes #2689.
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/** @file
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*****************************************************************************
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* @author This file is part of libsnark, developed by SCIPR Lab
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* and contributors (see AUTHORS).
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* @copyright MIT license (see LICENSE file)
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*****************************************************************************/
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#ifndef PROTOBOARD_HPP_
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#define PROTOBOARD_HPP_
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#include <algorithm>
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#include <cassert>
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#include <cstdio>
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#include <string>
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#include <vector>
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#include "gadgetlib1/pb_variable.hpp"
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#include "relations/constraint_satisfaction_problems/r1cs/r1cs.hpp"
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#include "common/utils.hpp"
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namespace libsnark {
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template<typename FieldT>
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class r1cs_constraint;
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template<typename FieldT>
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class r1cs_constraint_system;
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template<typename FieldT>
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class protoboard {
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private:
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FieldT constant_term; /* only here, because pb.val() needs to be able to return reference to the constant 1 term */
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r1cs_variable_assignment<FieldT> values; /* values[0] will hold the value of the first allocated variable of the protoboard, *NOT* constant 1 */
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var_index_t next_free_var;
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lc_index_t next_free_lc;
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std::vector<FieldT> lc_values;
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public:
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r1cs_constraint_system<FieldT> constraint_system;
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protoboard();
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void clear_values();
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FieldT& val(const pb_variable<FieldT> &var);
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FieldT val(const pb_variable<FieldT> &var) const;
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FieldT& lc_val(const pb_linear_combination<FieldT> &lc);
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FieldT lc_val(const pb_linear_combination<FieldT> &lc) const;
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void add_r1cs_constraint(const r1cs_constraint<FieldT> &constr, const std::string &annotation="");
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void augment_variable_annotation(const pb_variable<FieldT> &v, const std::string &postfix);
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bool is_satisfied() const;
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void dump_variables() const;
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size_t num_constraints() const;
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size_t num_inputs() const;
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size_t num_variables() const;
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void set_input_sizes(const size_t primary_input_size);
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r1cs_variable_assignment<FieldT> full_variable_assignment() const;
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r1cs_primary_input<FieldT> primary_input() const;
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r1cs_auxiliary_input<FieldT> auxiliary_input() const;
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r1cs_constraint_system<FieldT> get_constraint_system() const;
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friend class pb_variable<FieldT>;
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friend class pb_linear_combination<FieldT>;
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private:
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var_index_t allocate_var_index(const std::string &annotation="");
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lc_index_t allocate_lc_index();
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};
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} // libsnark
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#include "gadgetlib1/protoboard.tcc"
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#endif // PROTOBOARD_HPP_
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