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What does the syntax of the following cast to an object Page of struct WHISPERPACKET mean

typedef struct
{
    unsigned char uchData[512];
    unsigned char uchType;
    unsigned char uchInfo;
    unsigned short unSampleRate;
    unsigned short unSamples;
}WHISPERPACKET;

typedef unsigned char       BYTE;
WHISPERPACKET Page;


PageBuffer = (BYTE*)&Page;

edit:

BYTE* PageBuffer;
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  • The declaration of PageBuffer is missing, hopefully it's of type BYTE *, to which the address of Page is casted. See e.g. stackoverflow.com/questions/14769917/… Commented Dec 15, 2021 at 13:55
  • The cast is not applied to the object Page, but to a Page* pointer &Page. The goal is likely to access the underlying storage of Page as an array of bytes. Commented Dec 17, 2021 at 19:47
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