tri11paragon
/
Brain_Fuck
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

get fucked

main
Brett 2023-11-13 14:20:43 -05:00
parent e0e5f3d2ac
commit 702d5c3b57
1 changed files with 27 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/main.cpp
View File

@ -10,22 +10,22 @@ class brainfuck
size_t _dp;
char* _data;
void check_size(){
void check_size()
{
if (_dp >= _size)
{
char* tmp = new char[_size * 2];
std::memset(tmp, 0, _size * 2);
std::memset(&tmp[_size], 0, _size);
std::memcpy(tmp, _data, _size);
_size = _size * 2;
delete[] _data;
_data = tmp;
}
}
public:
brainfuck(): _size(30000), _dp(0), _data(new char[_size])
{
std::memset(_data, 0, _size);
}
brainfuck(): _size(2), _dp(0), _data(new char[_size])
{std::memset(_data, 0, _size);}
void increment_dp()
{
@ -44,28 +44,37 @@ class brainfuck
_data[_dp]++;
}
void decrement(){
void decrement()
{
check_size();
_data[_dp]--;
}
void print(){
void print()
{
std::cout << _data[_dp];
}
void read(){
void read()
{
std::cin >> _data[_dp];
}
char is(){
char is()
{
return _data[_dp];
}
~brainfuck()
{ delete[] _data; }
};
template<typename functor>
void match(functor f, int sp, size_t& index, const std::string& program){
void match(functor f, int sp, size_t& index, const std::string& program)
{
while (f(index) < program.size()){
while (f(index) < program.size())
{
if (program[index] == '[')
sp++;
if (program[index] == ']')
@ -85,9 +94,11 @@ int main()
brainfuck fuck;
size_t index = 0;
while (index < program.size()){
while (index < program.size())
{
auto c = program[index];
switch (c){
switch (c)
{
case '>':
fuck.increment_dp();
break;
@ -108,11 +119,11 @@ int main()
break;
case '[':
if (fuck.is() == 0)
match([](size_t& idx){return ++idx;}, 1, index, program);
match([](size_t& idx) { return ++idx; }, 1, index, program);
break;
case ']':
if (fuck.is() != 0)
match([](size_t& idx){return --idx;}, -1, index, program);
match([](size_t& idx) { return --idx; }, -1, index, program);
break;
default:
break;