qbytearray.h

奇趣公司比较新的qt/emd版本

    iterator begin();
    const_iterator begin() const;
    const_iterator constBegin() const;
    iterator end();
    const_iterator end() const;
    const_iterator constEnd() const;

    // stl compatibility
    typedef const char & const_reference;
    typedef char & reference;
    void push_back(char c);
    void push_back(const char *c);
    void push_back(const QByteArray &a);
    void push_front(char c);
    void push_front(const char *c);
    void push_front(const QByteArray &a);

    inline int count() const { return d->size; }
    int length() const { return d->size; }
    bool isNull() const;

    // compatibility
#ifdef QT3_SUPPORT
    QT3_SUPPORT_CONSTRUCTOR QByteArray(int size);
    inline QT3_SUPPORT QByteArray& duplicate(const QByteArray& a) { *this = a; return *this; }
    inline QT3_SUPPORT QByteArray& duplicate(const char *a, uint n)
    { *this = QByteArray(a, n); return *this; }
    inline QT3_SUPPORT QByteArray& setRawData(const char *a, uint n)
    { *this = fromRawData(a, n); return *this; }
    inline QT3_SUPPORT void resetRawData(const char *, uint) { clear(); }
    inline QT3_SUPPORT QByteArray lower() const { return toLower(); }
    inline QT3_SUPPORT QByteArray upper() const { return toUpper(); }
    inline QT3_SUPPORT QByteArray stripWhiteSpace() const { return trimmed(); }
    inline QT3_SUPPORT QByteArray simplifyWhiteSpace() const { return simplified(); }
    inline QT3_SUPPORT int find(char c, int from = 0) const { return indexOf(c, from); }
    inline QT3_SUPPORT int find(const char *c, int from = 0) const { return indexOf(c, from); }
    inline QT3_SUPPORT int find(const QByteArray &ba, int from = 0) const { return indexOf(ba, from); }
    inline QT3_SUPPORT int findRev(char c, int from = -1) const { return lastIndexOf(c, from); }
    inline QT3_SUPPORT int findRev(const char *c, int from = -1) const { return lastIndexOf(c, from); }
    inline QT3_SUPPORT int findRev(const QByteArray &ba, int from = -1) const { return lastIndexOf(ba, from); }
#ifndef QT_NO_CAST_TO_ASCII
    QT3_SUPPORT int find(const QString &s, int from = 0) const;
    QT3_SUPPORT int findRev(const QString &s, int from = -1) const;
#endif
#endif

private:
    operator QNoImplicitBoolCast() const;
    struct Data {
        QBasicAtomic ref;
        int alloc, size;
        char *data;
        char array[1];
    };
    static Data shared_null;
    static Data shared_empty;
    Data *d;
    QByteArray(Data *dd, int /*dummy*/, int /*dummy*/) : d(dd) {}
    void realloc(int alloc);
    void expand(int i);

    friend class QByteRef;
    friend class QString;
public:
    typedef Data * DataPtr;
    inline DataPtr &data_ptr() { return d; }
};

inline QByteArray::QByteArray(): d(&shared_null) { d->ref.ref(); }
inline QByteArray::~QByteArray() { if (!d->ref.deref()) qFree(d); }
inline int QByteArray::size() const
{ return d->size; }
inline const char QByteArray::at(int i) const
{ Q_ASSERT(i >= 0 && i < size()); return d->data[i]; }
inline const char QByteArray::operator[](int i) const
{ Q_ASSERT(i >= 0 && i < size()); return d->data[i]; }
inline const char QByteArray::operator[](uint i) const
{ Q_ASSERT(i < uint(size())); return d->data[i]; }
inline bool QByteArray::isEmpty() const
{ return d->size == 0; }
inline QByteArray::operator const char *() const
{ return d->data; }
inline QByteArray::operator const void *() const
{ return d->data; }
inline char *QByteArray::data()
{ detach(); return d->data; }
inline const char *QByteArray::data() const
{ return d->data; }
inline const char *QByteArray::constData() const
{ return d->data; }
inline void QByteArray::detach()
{ if (d->ref != 1 || d->data != d->array) realloc(d->size); }
inline bool QByteArray::isDetached() const
{ return d->ref == 1; }
inline QByteArray::QByteArray(const QByteArray &a) : d(a.d)
{ d->ref.ref(); }
#ifdef QT3_SUPPORT
inline QByteArray::QByteArray(int size) : d(&shared_null)
{ d->ref.ref(); if (size > 0) fill('\0', size); }
#endif

inline int QByteArray::capacity() const
{ return d->alloc; }

inline void QByteArray::reserve(int asize)
{ if (d->ref != 1 || asize > d->alloc) realloc(asize); }

inline void QByteArray::squeeze()
{ if (d->size < d->alloc) realloc(d->size); }

class Q_CORE_EXPORT QByteRef {
    QByteArray &a;
    int i;
    inline QByteRef(QByteArray &array, int idx)
        : a(array),i(idx) {}
    friend class QByteArray;
public:
    inline operator const char() const
        { return i < a.d->size ? a.d->data[i] : 0; }
    inline QByteRef &operator=(char c)
        { if (a.d->ref != 1 || i >= a.d->size) a.expand(i);
          a.d->data[i] = c;  return *this; }
    inline QByteRef &operator=(const QByteRef &c)
        { if (a.d->ref != 1 || i >= a.d->size) a.expand(i);
          a.d->data[i] = c.a.d->data[c.i];  return *this; }
    inline bool operator==(char c) const
    { return a.d->data[i] == c; }
    inline bool operator!=(char c) const
    { return a.d->data[i] != c; }
    inline bool operator>(char c) const
    { return a.d->data[i] > c; }
    inline bool operator>=(char c) const
    { return a.d->data[i] >= c; }
    inline bool operator<(char c) const
    { return a.d->data[i] < c; }
    inline bool operator<=(char c) const
    { return a.d->data[i] <= c; }
};

inline QByteRef QByteArray::operator[](int i)
{ Q_ASSERT(i >= 0); return QByteRef(*this, i); }
inline QByteRef QByteArray::operator[](uint i)
{ return QByteRef(*this, i); }
inline QByteArray::iterator QByteArray::begin()
{ detach(); return d->data; }
inline QByteArray::const_iterator QByteArray::begin() const
{ return d->data; }
inline QByteArray::const_iterator QByteArray::constBegin() const
{ return d->data; }
inline QByteArray::iterator QByteArray::end()
{ detach(); return d->data + d->size; }
inline QByteArray::const_iterator QByteArray::end() const
{ return d->data + d->size; }
inline QByteArray::const_iterator QByteArray::constEnd() const
{ return d->data + d->size; }
inline QByteArray &QByteArray::operator+=(char c)
{ return append(c); }
inline QByteArray &QByteArray::operator+=(const char *s)
{ return append(s); }
inline QByteArray &QByteArray::operator+=(const QByteArray &a)
{ return append(a); }
inline void QByteArray::push_back(char c)
{ append(c); }
inline void QByteArray::push_back(const char *c)
{ append(c); }
inline void QByteArray::push_back(const QByteArray &a)
{ append(a); }
inline void QByteArray::push_front(char c)
{ prepend(c); }
inline void QByteArray::push_front(const char *c)
{ prepend(c); }
inline void QByteArray::push_front(const QByteArray &a)
{ prepend(a); }
inline QBool QByteArray::contains(const QByteArray &a) const
{ return QBool(indexOf(a) != -1); }
inline QBool QByteArray::contains(char c) const
{ return QBool(indexOf(c) != -1); }
inline bool operator==(const QByteArray &a1, const QByteArray &a2)
{ return (a1.size() == a2.size()) && (memcmp(a1, a2, a1.size())==0); }
inline bool operator==(const QByteArray &a1, const char *a2)
{ return a2 ? strcmp(a1,a2) == 0 : a1.isEmpty(); }
inline bool operator==(const char *a1, const QByteArray &a2)
{ return a1 ? strcmp(a1,a2) == 0 : a2.isEmpty(); }
inline bool operator!=(const QByteArray &a1, const QByteArray &a2)
{ return !(a1==a2); }
inline bool operator!=(const QByteArray &a1, const char *a2)
{ return a2 ? strcmp(a1,a2) != 0 : !a1.isEmpty(); }
inline bool operator!=(const char *a1, const QByteArray &a2)
{ return a1 ? strcmp(a1,a2) != 0 : !a2.isEmpty(); }
inline bool operator<(const QByteArray &a1, const QByteArray &a2)
{ return strcmp(a1, a2) < 0; }
 inline bool operator<(const QByteArray &a1, const char *a2)
{ return qstrcmp(a1, a2) < 0; }
inline bool operator<(const char *a1, const QByteArray &a2)
{ return qstrcmp(a1, a2) < 0; }
inline bool operator<=(const QByteArray &a1, const QByteArray &a2)
{ return strcmp(a1, a2) <= 0; }
inline bool operator<=(const QByteArray &a1, const char *a2)
{ return qstrcmp(a1, a2) <= 0; }
inline bool operator<=(const char *a1, const QByteArray &a2)
{ return qstrcmp(a1, a2) <= 0; }
inline bool operator>(const QByteArray &a1, const QByteArray &a2)
{ return strcmp(a1, a2) > 0; }
inline bool operator>(const QByteArray &a1, const char *a2)
{ return qstrcmp(a1, a2) > 0; }
inline bool operator>(const char *a1, const QByteArray &a2)
{ return qstrcmp(a1, a2) > 0; }
inline bool operator>=(const QByteArray &a1, const QByteArray &a2)
{ return strcmp(a1, a2) >= 0; }
inline bool operator>=(const QByteArray &a1, const char *a2)
{ return qstrcmp(a1, a2) >= 0; }
inline bool operator>=(const char *a1, const QByteArray &a2)
{ return qstrcmp(a1, a2) >= 0; }
inline const QByteArray operator+(const QByteArray &a1, const QByteArray &a2)
{ return QByteArray(a1) += a2; }
inline const QByteArray operator+(const QByteArray &a1, const char *a2)
{ return QByteArray(a1) += a2; }
inline const QByteArray operator+(const QByteArray &a1, char a2)
{ return QByteArray(a1) += a2; }
inline const QByteArray operator+(const char *a1, const QByteArray &a2)
{ return QByteArray(a1) += a2; }
inline const QByteArray operator+(char a1, const QByteArray &a2)
{ return QByteArray(&a1, 1) += a2; }
inline int QByteArray::indexOf(const char *c, int i) const
{ return indexOf(fromRawData(c, qstrlen(c)), i); }
inline int QByteArray::lastIndexOf(const char *c, int i) const
{ return lastIndexOf(fromRawData(c, qstrlen(c)), i); }
inline QBool QByteArray::contains(const char *c) const
{ return contains(fromRawData(c, qstrlen(c))); }
inline QByteArray &QByteArray::replace(int index, int len, const char *c)
{ return replace(index, len, fromRawData(c, qstrlen(c))); }
inline QByteArray &QByteArray::replace(char before, const char *c)
{ return replace(before, fromRawData(c, qstrlen(c))); }
inline QByteArray &QByteArray::replace(const QByteArray &before, const char *c)
{ return replace(before, fromRawData(c, qstrlen(c))); }
inline QByteArray &QByteArray::replace(const char *c, const QByteArray &after)
{ return replace(fromRawData(c, qstrlen(c)), after); }
inline QByteArray &QByteArray::replace(const char *before, const char *after)
{ return replace(fromRawData(before, qstrlen(before)), fromRawData(after, qstrlen(after))); }

inline QByteArray &QByteArray::setNum(short n, int base)
{ return setNum(qlonglong(n), base); }
inline QByteArray &QByteArray::setNum(ushort n, int base)
{ return setNum(qulonglong(n), base); }
inline QByteArray &QByteArray::setNum(int n, int base)
{ return setNum(qlonglong(n), base); }
inline QByteArray &QByteArray::setNum(uint n, int base)
{ return setNum(qulonglong(n), base); }
inline QByteArray &QByteArray::setNum(float n, char f, int prec)
{ return setNum(double(n),f,prec); }


#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QByteArray &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QByteArray &);
#endif

#ifndef QT_NO_COMPRESS
Q_CORE_EXPORT QByteArray qCompress(const uchar* data, int nbytes, int compressionLevel = -1);
Q_CORE_EXPORT QByteArray qUncompress(const uchar* data, int nbytes);
inline QByteArray qCompress(const QByteArray& data, int compressionLevel = -1)
{ return qCompress(reinterpret_cast<const uchar *>(data.constData()), data.size(), compressionLevel); }
inline QByteArray qUncompress(const QByteArray& data)
{ return qUncompress(reinterpret_cast<const uchar*>(data.constData()), data.size()); }
#endif

Q_DECLARE_TYPEINFO(QByteArray, Q_MOVABLE_TYPE);
Q_DECLARE_SHARED(QByteArray)

QT_END_HEADER

#endif // QBYTEARRAY_H