modular_arithmetic.hpp

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#pragma once
 
#include <cstdint>
#include <vector>
#include <variant>
 
namespace fc {
    using bytes = std::vector<char>;
 
    enum class modular_arithmetic_error : int32_t {
        modulus_len_zero,
    };
 
    std::variant<modular_arithmetic_error, bytes> modexp(const bytes& _base, const bytes& _exponent, const bytes& _modulus);
}