src/corelib/codecs/qtextcodec_p.h

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  41
  42 #ifndef QTEXTCODEC_P_H
  43 #define QTEXTCODEC_P_H
  44
  45 //
  46 //  W A R N I N G
  47 //  -------------
  48 //
  49 // This file is not part of the Qt API.  It exists for the convenience
  50 // of the QTextCodec class.  This header file may change from
  51 // version to version without notice, or even be removed.
  52 //
  53 // We mean it.
  54 //
  55
  56 #include "qtextcodec.h"
  57 #include <string.h>
  58
  59 QT_BEGIN_NAMESPACE
  60
  61 #ifndef QT_NO_TEXTCODEC
  62
  63 typedef void (*QTextCodecStateFreeFunction)(QTextCodec::ConverterState*);
  64
  65 struct QTextCodecUnalignedPointer
  66 {
  67     static inline QTextCodecStateFreeFunction decode(const uint *src)
  68     {
  69         quintptr data;
  70         memcpy(&data, src, sizeof(data));
  71         return reinterpret_cast<QTextCodecStateFreeFunction>(data);
  72     }
  73     static inline void encode(uint *dst, QTextCodecStateFreeFunction fn)
  74     {
  75         quintptr data = reinterpret_cast<quintptr>(fn);
  76         memcpy(dst, &data, sizeof(data));
  77     }
  78 };
  79
  80 #else
  81
  82 class QTextCodec
  83 {
  84 public:
  85     enum ConversionFlag {
  86         DefaultConversion,
  87         ConvertInvalidToNull = 0x80000000,
  88         IgnoreHeader = 0x1,
  89         FreeFunction = 0x2
  90     };
  91     Q_DECLARE_FLAGS(ConversionFlags, ConversionFlag)
  92
  93     struct ConverterState {
  94         ConverterState(ConversionFlags f = DefaultConversion)
  95             : flags(f), remainingChars(0), invalidChars(0), d(0) { state_data[0] = state_data[1] = state_data[2] = 0; }
  96         ~ConverterState() { }
  97         ConversionFlags flags;
  98         int remainingChars;
  99         int invalidChars;
 100         uint state_data[3];
 101         void *d;
 102     private:
 103         Q_DISABLE_COPY(ConverterState)
 104     };
 105 };
 106
 107 #endif //QT_NO_TEXTCODEC
 108
 109 QT_END_NAMESPACE
 110
 111 #endif