Brain_Fuck/include/bf_interpreter.h

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#pragma once
/*
* Created by Brett on 17/11/23.
* Licensed under GNU General Public License V3.0
* See LICENSE file for license detail
*/
#ifndef BRAINFUCK_MISC_BF_INTERPRETER_H
#define BRAINFUCK_MISC_BF_INTERPRETER_H
#include <cstdint>
#include <cstring>
#include <string>
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#include <bf_tokenizer.h>
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class brainfuck_interpreter
{
private:
size_t _size;
size_t _dp;
char* _data;
void check_size();
public:
brainfuck_interpreter(): _size(30000), _dp(0), _data(new char[_size])
{std::memset(_data, 0, _size);}
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void increment_dp(size_t amount = 1)
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{
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_dp += amount;
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}
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void decrement_dp(size_t amount = 1)
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{
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_dp -= amount;
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}
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void increment(char amount = 1)
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{
check_size();
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_data[_dp] += amount;
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}
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void decrement(char amount = 1)
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{
check_size();
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_data[_dp] -= amount;
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}
template<typename OutStream>
void print(OutStream& stream)
{
stream << _data[_dp];
}
template<typename InStream>
void read(InStream& stream)
{
_data[_dp] = stream.get();
}
char is()
{
return _data[_dp];
}
~brainfuck_interpreter()
{ delete[] _data; }
};
void interpret_bf(const std::string& program);
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void interpret_bf(bf_tokenizer& tokenizer);
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#endif //BRAINFUCK_MISC_BF_INTERPRETER_H