copying a buffer in a struct in C++ style -

say have struct

typedef struct {     unsigned char flag, type;     unsigned short id;     uint32 size; } thdr; 

and buffer of data coming udp comunication, have buffer of bytes , size (data , data_size). data size bigger sizeof(thdr).

the struct @ beginning of buffer, , want copy struct defined in code, thdr struct_copy .

i know can use memcpy(&struct_copy,data[0],sizeof(struct_copy)); use "c++ style" way, using std::copy.

any clue?

how like

thdr hdr; std::copy(&hdr, &hdr + 1, reinterpret_cast<thdr*>(data)); 

should copy 1 thdr structure data hdr.

it can simpler:

thdr hdr; hdr = *reinterpret_cast<thdr*>(data); 

this last works in c well:

thdr hdr; hdr = *(thdr *) data; 

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or why not create constructor takes data input? like

struct thdr {     explicit thdr(const unsigned char* data)         {             thdr* other = reinterpret_cast<thdr*>(data);             *this = *other;         }      // ... }; 

then can used such as

thdr hdr(data);