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Lab is done (Руяткин Илья ПМИ3) #216

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Lab is done (Руяткин Илья ПМИ3) #216

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7841b54
Update tbitfield.cpp
yhurt7 Oct 16, 2022
ce6db16
Update tbitfield.cpp
yhurt7 Oct 16, 2022
29d3130
Update tset.cpp
yhurt7 Oct 16, 2022
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209 changes: 173 additions & 36 deletions src/tbitfield.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,86 +13,223 @@ static TBitField FAKE_BITFIELD(1);

TBitField::TBitField(int len)
{
}

TBitField::TBitField(const TBitField &bf) // конструктор копирования
{
if (len > -1)
{
BitLen = len;
MemLen = len * sizeof(TELEM) * 8;
pMem = new TELEM[MemLen];
if (pMem != NULL)
{
for (int i = 0; i < MemLen; i++)
pMem[i] = 0;
}
}
else
{
throw "error";
}
}

TBitField::TBitField(const TBitField& bf) // конструктор копирования
{
if (bf.BitLen <= 0)
throw "error";
else
{
MemLen = bf.MemLen;
BitLen = bf.BitLen;
pMem = new TELEM[MemLen];
for (int i = 0; i < MemLen; i++)
{
pMem[i] = bf.pMem[i];
}
}
}

TBitField::~TBitField()
{
if (pMem != 0)
delete[] pMem;
pMem = 0;
MemLen = 0;
BitLen = 0;
}

int TBitField::GetMemIndex(const int n) const // индекс Мем для бита n
{
return FAKE_INT;
if ((n < 0) || (n > BitLen))
{
throw "error";
}
else
return n >> 5;
}

TELEM TBitField::GetMemMask(const int n) const // битовая маска для бита n
{
return FAKE_INT;
if (n < 0 && n < BitLen) throw "error";
return 1 << (n & 31);
}

// доступ к битам битового поля

int TBitField::GetLength(void) const // получить длину (к-во битов)
{
return FAKE_INT;
return BitLen;
}

void TBitField::SetBit(const int n) // установить бит
{
if ((n < 0) || (n > BitLen))
{
throw "error";
}
else
{
int i = GetMemIndex(n);
int m = GetMemMask(n);
pMem[i] = pMem[i] | m;
}
}

void TBitField::ClrBit(const int n) // очистить бит
{
if ((n < 0) || (n > BitLen))
{
throw "error";
}
else
{
int i = GetMemIndex(n);
int m = GetMemMask(n);
pMem[i] = pMem[i] & ~m;
}
}

int TBitField::GetBit(const int n) const // получить значение бита
{
return FAKE_INT;
if ((n < 0) || (n > BitLen))
{
throw "error";
}
else
{
int i = GetMemIndex(n);
int m = GetMemMask(n);
return (pMem[i] & m);
}
}

// битовые операции

TBitField& TBitField::operator=(const TBitField &bf) // присваивание
{
return FAKE_BITFIELD;
}

int TBitField::operator==(const TBitField &bf) const // сравнение
{
return FAKE_INT;
}

int TBitField::operator!=(const TBitField &bf) const // сравнение
{
return FAKE_INT;
}

TBitField TBitField::operator|(const TBitField &bf) // операция "или"
{
return FAKE_BITFIELD;
}

TBitField TBitField::operator&(const TBitField &bf) // операция "и"
{
return FAKE_BITFIELD;
TBitField& TBitField::operator=(const TBitField& bf) // присваивание
{
if (this == &bf)
return *this;
else
{
delete[] pMem;
MemLen = bf.MemLen;
pMem = new TELEM[MemLen];
BitLen = bf.BitLen;
for (int i = 0; i < MemLen; i++)
{
pMem[i] = bf.pMem[i];
}
return *this;
}
}

int TBitField::operator==(const TBitField& bf) const // сравнение
{
if (MemLen != bf.MemLen || BitLen != bf.BitLen)
return 0;
else
{
for (int i = 0; i < MemLen; i++)
{
if (pMem[i] != bf.pMem[i])
return 0;
}
return 1;
}
}

int TBitField::operator!=(const TBitField& bf) const // сравнение
{
if (MemLen != bf.MemLen || BitLen != bf.BitLen)
return 1;
else
{
for (int i = 0; i < MemLen; i++)
{
if (pMem[i] != bf.pMem[i])
return 1;
}
return 0;
}
}

TBitField TBitField::operator|(const TBitField& bf) // операция "или"
{
if (bf.BitLen > BitLen)
BitLen = bf.BitLen;
TBitField res = (BitLen);
for (int i = 0; i < MemLen; i++)
res.pMem[i] = pMem[i];
for (int i = 0; i < bf.MemLen; i++)
{
res.pMem[i] = res.pMem[i] | bf.pMem[i];
}
return res;
}

TBitField TBitField::operator&(const TBitField& bf) // операция "и"
{
if (bf.BitLen > BitLen)
BitLen = bf.BitLen;
TBitField res = (BitLen);
for (int i = 0; i < MemLen; i++)
res.pMem[i] = pMem[i];
for (int i = 0; i < bf.MemLen; i++)
res.pMem[i] &= bf.pMem[i];
return res;
}

TBitField TBitField::operator~(void) // отрицание
{
return FAKE_BITFIELD;
TBitField res(*this);
for (int i = 0; i < res.BitLen; i++)
{
if (res.GetBit(i))
res.ClrBit(i);
else
res.SetBit(i);
}
return res;
}

// ввод/вывод

istream &operator>>(istream &istr, TBitField &bf) // ввод
istream& operator>>(istream& istr, TBitField& bf) // ввод
{
return istr;
int tmp;
for (int i = 0; i < bf.GetLength(); i++)
{
cin >> tmp;
if (tmp == 1)
bf.SetBit(i);
else
if (tmp == 0)
bf.ClrBit(i);
}
return istr;
}

ostream &operator<<(ostream &ostr, const TBitField &bf) // вывод

ostream& operator<<(ostream& ostr, const TBitField& bf) // вывод
{
return ostr;
for (int i = 0; i < bf.GetLength(); i++)
ostr << bf.GetBit(i);
return ostr;
}
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