i an pretty new to c/c++ and even thought i am in the beginners forum this question is pretty stupid but the to books i have on programing C/C++ and game pgrgraming for dummys do not explane this function memcpy how dose it copy or pack the data into the first argument

It copies count characters from the src array into the dest array.

void memcpy( void* dest, const void* src, size_t count ){   while( count-- )      *((char*)dest++) = *((const char*)src++);}; 

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thanks for the reply

Furthermore, the caller of memcpy has the responsibility to ensure the source and destination ranges do not overlap, else the behaviour is undefined. If you are programming in C++, and you are using objects, you really should avoid memcpy, as it doesn''t play nicely with objects.