need help in Copying unsigned char to uint64_t

[lovesunset21]

Hi everyone,

I am a dummy in C programming. I have a problem with copying the array of 64 elements of unsigned char to array of 8 element of uint64_t. For example:

unsigned char p[64]
uint64_t Data[8];

memcpy (&Data, &p, 64);


I am not sure if it is right. Please help me. Thanks a lot.

Moreover, do both p and Data have 64 bytes?

[lovesunset21]

one more question is how to copy an uint64_t variable to uint64_t array of 8 elements. Thank you so much. I am looking forward to your reply

[Rubberman]

Why do you want to do this? What is the purpose of the operation? In any case, yes you can do a memcpy() operation as you showed, but that may or may not be what you want to do. Hence, the reason for my first 2 questions.